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$142.49 Too low to display list($199.99)
1. Texas Instruments TI-89 Titanium
$77.99 list()
3. Hewlett Packard 49G+ Graphing
$64.59 $63.95 list($87.51)
4. HP HP12C Financial Calculator
$180.49 $179.88 list($199.99)
5. Texas Instruments Voyage 200 Calculator
$47.49 list($65.99)
6. HP 33S Scientific Calculator (F2216A)
$132.04 $113.95 list($129.99)
7. Texas Instruments TI-84-Plus Silver
$27.49 $24.98 list($45.00)
8. Texas Instruments BA II Plus Advanced
$47.49 $32.00 list($70.00)
9. Texas Instruments BA II Plus Professional
$107.34 $97.99 list($109.99)
10. Texas Instruments TI-84-Plus Graphing
$125.95 list($190.00)
11. Texas Instruments TI-89 Advanced
$105.44 $80.00 list($150.00)
12. Texas Instruments TI86 Graphing
$381.51 list($265.00)
13. HP HP48GX RPN Expandable Graphic
14. Texas Instruments TI-92 Plus Graphing
$99.74 $91.50 list($129.99)
15. HP 48GII Graphic Calculator (F2226A)
$14.24 list($14.99)
16. Sharp EL-506WBBK Scientific Calculator
$142.49 list($179.95)
17. Casio ClassPad 300 Touch-Screen
$319.99 list($64.99)
18. HP HP32SII Scientific Calculator
$20.89 $19.88 list($28.95)
19. Texas Instruments BA35 Calculator
$15.19 list()
20. Texas Instruments TI-30XIIB Scientific

1. Texas Instruments TI-89 Titanium Graphing Calculator
by Texas Instruments
list price: $199.99
our price: $142.49
(price subject to change: see help)
Asin: B0001EMLZ2
Catlog: CE
Manufacturer: Texas Instruments
Sales Rank: 383
Average Customer Review: 4.5 out of 5 stars
US | Canada | United Kingdom | Germany | France | Japan

Product Description

This powerful Texas Instruments advanced graphing calculator does all the math functions you'd want but it also lets you create animations and do 3D graphing and rotation. And the TI-89 is permitted for use on many state and standardized tests. Features: official AP Calculus review questions on the enclosed product CD; computer algebra system; USB cable; more than 2x more memory than the earlier TI-89; EE*Pro application for electrical engineering; easily calculate derivatives and integrals, limits, max/min, sequences and series; solve equations including systems of linear and nonlinear equations; differential equations can be solved numerically, symbolically, and graphically including slope and directional fields; advanced statistics functionality including multiple regressions/tests/intervals, ANOVA 2-way, and goodness of fit; physical constants and unit conversions; powerful vector and matrix calculations and functions and calculation of eigenvalues and eigenvectors. ... Read more


  • USB and I/O ports; includes USB and TI cables
  • Approved for AP, PSAT/NMSQT, and SAT exams
  • All of the features of the popular TI-89, plus extras
  • 188 KB RAM, 2.7 MB Flash ROM, 16 programmed applications
  • 100 x 160 pixel display with split-screen views

Reviews (26)

5-0 out of 5 stars Very good for Statistics and Finance too...
I saw many reviewers for advanced math and engineering. I just want to add that it is also very good for stat and finance. It can be calculated with almost (I'm saying this because I haven't tried every single one yet ;-) every calculation with this TI-89. The plus side is that it has bigger screen and we can change any value anytime without starting over... especially good for multiple problem solving.

At first, I intendeded to purchase TI-BAII+ required by the professor but decided to trade this TI-89 Titanium with my old original TI-89. Both has flash applications for Statistics with List Editor and Finance as well as Data/Metrix Editor. For finance, you can get PV, FV, i, PMT, NPV, IRR, etc.

You can also download guide books from TI's website. This is a life saver for most business classes.... I used TI-89 from advanced algebra, pre- and calculus, fin & managerial accounting, economics, 2 statistics, and financial management... 10 courses altogether ;-) And this IT-89 cost about the same price of a business text book! Of course, you'll need to know the concepts and how to use this calculator first.

If you're wondering which one to choose between original TI89 and this new Titanium, I recommend original if you've vision problem. Original TI89 has deep purple and dark blue colors for "2nd" and "diamond" keys. This new one has very pale blue and light green keys, hard to look at if you need combination keys. SO do for the fonts and "alpha" key. As the manufacturer mentioned, this one has more memory and can be used USB cable.

Just a tip for the two reviewers below and others about fraction and decimal switching (.25 - 1/4 switching) :
Reviewer:MaxiMinerand Reviewer:cool dude (Stockholm)

Just use a "period" between the calculation (if you have all whole numbers) and you'll see decimals in the result without changing the "mode" you preferred. If you have any decimals between the calculations, you'll automatically see decimals. It works for every graphing calculator. I got that tip from a Math Lab Asst. in my algebra lab.

5-0 out of 5 stars Printed manual IS available
Well, it's just a "short" 606 page version for the TI-89/TI-92, but it still beats dealing with 900+ pages from Titanium CD or on-line manual.
Go to epsstore ti com Manuals/Guidebooks under TI-89 and get it for the measly 20+ (seems French and Spanish reading public gets 50% break).
Functionally TI-89 and TI-92 are nearly identical (minus keyboard on TI-89), so you can find very nice books on TI-92, like those from Gilmar publishing, that you can apply to your Titanium.
I had the same gripes as "cool dude" (see review below) about .25 - 1/4 switching until I started working in the exact mode, pressing [diamond][ENTER] (instead of just [ENTER]), when decimals are needed.
Still, if I need to work with fractions and other simple things, I pull out my trusty Sharp EL-506WBBK. To switch from .25 to 1/4 and back you just toggle with the [a b/c] key.
To get a proper function on TI-89 you have to envoke F2,7,2ND,(-),),ENTER. On Sharp: 2ndF, [a b/c].
But then again, Titanium is crafted for much finer things. And how it does them is beyond praise.

4-0 out of 5 stars Great Calculator - small print
This calculator seems to do everything and do it well. My only complaint is that the alternate key functions are somewhat hard to read and the screen can be somewhat hard to read. As you can guess I use glasses. I wish TI would make a screen where the fonts size can be adjusted and perhaps even a backlit screen, otherwise a great product.

4-0 out of 5 stars Tig Class
This Calculator is perfect for advanced math classes. It does more than I could ever believe. The Calculator is simple to use and has a nice screen format. The main problem is that it has so much processes that you actually have to dig got the x radical sign. It can even graph in 3-d. The only thing better is one that has a colored screen.

4-0 out of 5 stars Just a few things....
Perhaps Im little more whiny than you jankees, because I live in Sweden and had to pay almost the double price, since Im not allowedorder it from Amazon. Some complains:

The numbers on the screens are very small, compared to ti-83 for example. I wish their size could have been adjustable.

There are no simple method to get a number fractioned, like make 0.25 into 1/4. You have to go to the mode menue and switch to "exact". Its irritating, on ti-83 you just chose "frac". Maybe Im missing something so if its possible on this I want to know! :P

It just got natural and 10 logarithms. In matlab you can have log2 for example.

Otherwise, this is a really good and flashy calculator that makes all the ordinary ti-83/86 owners go like: " what is that?!". D-) ... Read more

by Texas Instruments
list price: $129.99
(price subject to change: see help)
Asin: B00005NT9E
Catlog: CE
Manufacturer: Texas Instruments
Average Customer Review: 4.5 out of 5 stars
US | Canada | United Kingdom | Germany | France | Japan

Reviews (135)

5-0 out of 5 stars Very good product
This calculator is probobly the best one that i have owned. You can create graphs with it, you can do equations, you can even do complex algebra/trigonometry/calculus on this calculator. Also, for the kids, there are games that you can download quite simply of the internet for you to play in case by any chance you get bored during math class. (Don't get any bright ideas!) I know this product is very expensive, but it is well worth it once you realize how good this product actually is. Do yourself a favor, and buy this product!

5-0 out of 5 stars great calculator
I found this to be a useful calculator in high school.It definitely helped me see a lot of functions and perform experiments.

5-0 out of 5 stars The gold standard for calculators
I purchased my TI-83 Plus in 1999 and still have it today. I have never had any problems with it and can only remember changing the batteries 3 or 4 times. I've even dropped it from my 2nd story balcony by accident (more like a friend knocked it off a table on the balcony) and it didn't break. When I turned it on after it fell, my calculations were still on the screen!

It is easy to use and fast enough for all high school and college mathematics.

I'd recommend it to anyone who needs a workhorse of a calculator.

5-0 out of 5 stars Amazing
This is a fantastic calculator that I use in my algebra class and others.You can take notes on this calculator with the Ti keybord acsseorie the acsseorie comes with a program for the calculator so you can take notes on it and save them for tests. You can also store things like study cards,games,and all those other important things you need. I highly recommend this calculator to anyone with any class.GO GET THIS CALCULATOR!=)

5-0 out of 5 stars Too simple?I think not!
I looked at other more "fully featured" calculators for my daughter and decided against them.It is so easy to buy more than you need in calculators and end up with something too complex/confusing for purpose.Avoid the "my calculator has got more buttons thatn your calculator" syndrome.Better to buy a more complex one in three years for college, if needed - when they will be cheaper and have even more feaures. ... Read more

3. Hewlett Packard 49G+ Graphing Calculator
by Hewlett Packard

our price: $77.99
(price subject to change: see help)
Asin: B0000DK662
Catlog: CE
Manufacturer: Hewlett Packard
Sales Rank: 308
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Product Description

HP Calculators (F2228A) HP49G+ Graphing Calculator ... Read more


  • Carrying pouch, batteries, and USB cable included
  • 131-by-80-pixel display, up to 9 lines by 33 characters
  • RPN, algebraic, and textbook entry system logic
  • 1.13 MB memory; over 2300 built-in functions
  • Advanced statistical, mathematical, scientific, graphing, and programming features

4. HP HP12C Financial Calculator
by Hewlett Packard
list price: $87.51
our price: $64.59
(price subject to change: see help)
Asin: B00000JBLH
Catlog: CE
Manufacturer: Hewlett Packard
Sales Rank: 428
Average Customer Review: 4.5 out of 5 stars
US | Canada | United Kingdom | Germany | France | Japan Review

If you bought yourself a financial calculator during the 1980s, chances are it was this bad boy. Nothing has changed since its introduction--it still uses Reverse Polish Notation (RPN), is easy and versatile in programming, and has a thin, sturdy casing. Certainly, there's been newer, fancier calculators introduced since, but there's something to be said for the quality of classics.

The HP 12C's functions include all the basics--such as calculating APR, NPV, and IRR--and statistics are a snap. For students new to financial calculators, this is an excellent place to start. For the most part, the manual reads like a minitextbook, walking you through sample problems and situations followed by graphs and tables demonstrating the technique--and you can even check your results. The section on creating programs does seem to be written for the technically ignorant, addressing in detail how you could possibly benefit from using programs, but it'll still help you get the job done.

In general, it's a bit slower than newer models, just like last year's computer isn't as speedy as today's new release. On the plus side, it's just 3 by 5 inches and slips easily into a pocket. The bottom is printed with a few little cheat notes for common functions, which is nice for quick reference. The HP 12C's one-year warranty and available tech-support line offer reassurance this little workhorse will continue to be an industry standard for years to come. --Jill Lightner


  • Pocket size
  • Thorough and simple instruction manual
  • Competitive price


  • Calculates more slowly than modern machines
What's in the Box
Calculator, user's manual, installed batteries, and carrying case ... Read more


  • 10-character LCD
  • Over 120 built-in business functions
  • Statistics and finance features
  • Register based cash-flow analysis
  • Long battery life

Reviews (86)

5-0 out of 5 stars Venerable, Compact, Elegant
I first began using this 'calc' in 1986. A commercial realtor friend told me this was what "everyone" (everyone to be taken seriously) used. I carried it on vacation, to church, to the supermarket, and everywhere, determined to learn in any spare moment its secrets and work its magic. The 12C's flat profile and compact size slips easily into a sportcoat pocket and you can rotate it continually in one hand just for fun! The User's Manual was not especially user friendly, but it was (is still?) a key to the treasure. It also can be easily slipped into a pocket, but I found the glossy pages annoyingly difficult to pencil-in notes.HP also makes the cheaper 10B II calc that the College for Financial Planning (CFP) recommends for their coursework. I often use it at work, and when teaching at a local college I am not inclined to require students buy the more expensive HP 12C. The more expensive HP 17B II leaves me cold. There is an elegance to the 12C that has not been surpassed. I own two 12C's just in case one is damaged! The Polish notation ('throw mother from the train a kiss' viz. 6, ENTER, 2, + {answer} 8 )is an eccentricity (like Uncle Fred's table manners) that is quickly embraced...a price for membership to the club. HP actually makes a version of the 12C that allows you to change this feature, but my guess is that it has never gained popularity.

5-0 out of 5 stars You really don't need it
I have had an HP 12C for 20 years.Yes it is wonderful calculator but you really shouldn't spend the extra money for it.

It is expensive because it was designed for programming and elaborate cashflow analysis.Yes indeed in the early 80s people used to program 100+ step programs in to these dinky but powerful machines.Nobody would do it today. We have spreadsheets for that.

The machine uses RPN (reverse Polish notation) so you have to get used to that, it has over 30 memories (I doubt you will ever use more than 3), the anachronistic programming capability and lots of funny symbols that I don't even know what they mean.My advice is to buy the HP B10.You can get it for half the price.Yeah its not quite the status symbol the 12C is but its all that you need.

5-0 out of 5 stars I've had mine 20 years
I've had my hp 20C for 20 years.Still works great.Still does everything I want it to.

I'm stunned they still sell these things.Same design, same functionality, almost the same price (there were about $300 in 1985).What other piece of calculating electronics can claim the same thing?When these came out the Internet was called Arpa net, Personal computers came with 32k memory, floppies had 360k capacity, modems were 300 baud and nobody had "email".

5-0 out of 5 stars READ with Mr. Tirone's HP-12C Real Estate Book
I purchased this calculator some time ago but was not pleased with the manual's coverage of the field I am employed in, real estate. Then I noticed a real estate calculator book carried by by a Mr. John A. Tirone ("Professional Real Estate Problem Solving Using the HP-12C"). I purchased the Tirone HP-12C real estate calculator book from, best investment I have yet to make in real estate. The book is great--it covers so many topics in real estate that it is difficult to imagine a book of that level and quality being put together, especially when you take into account that the author supports his books.
Nice calcuator, but Hewlett-Packard should consider including a copy of the Tirone book along with the device.

5-0 out of 5 stars Best financial calculator ever
I'm a gread student majoring in finance and I've owned a texas financial calculator for 2 years now.For some reason, I've never been able to master all the functions in the texas without keeping the instruction manual open.I finally decided to give the hp 12 c a try and am really thrilled with the results.The HP 12 c is very easy to master - took me 2 hours to go through the manual and understand everything and I dont carry the manual around anymore.Its made my life much simpler! ... Read more

5. Texas Instruments Voyage 200 Calculator
by Texas Instruments
list price: $199.99
our price: $180.49
(price subject to change: see help)
Asin: B00006D2Q1
Catlog: CE
Manufacturer: Texas Instruments
Sales Rank: 1721
Average Customer Review: 4.5 out of 5 stars
US | Canada | United Kingdom | Germany | France | Japan

Product Description

Texas Instruments (TIVOYAGE200) TIVOYAGE200-The most powerful handheld functionality from Texas Instruments - Voyage 200 lets ... Read more


  • Numeric and symbolic equations; factor, solve, differentiate, integrate
  • QWERTY keyboard for typing
  • Large easy-to-ready 128 x 240 pixel LCD
  • Preloaded with popular applications, including The Geometer's Sketchpad
  • Accepts StudyCards for history, foreign language, English, and more

Reviews (21)

5-0 out of 5 stars A word on documentation
Recently received my Voyage 200, and am very pleased with the unit itself. As others have commented, the lack of a decent printed manual is a drawback.

Knowing that the TI-89 Titanium is functionally almost identical to the Voyage 200, I called Texas Instruments and ordered a TI-89 manual. Customer service was very friendly, the manual was cheap ($4.95 + s/h), and it arrived quickly.

TI really should package this manual with the Voyage 200, and maybe they'll start doing it in the future. In the meantime, if you're getting a Voyage 200, just order an 89 manual from TI.

4-0 out of 5 stars Missing many statistic functions from TI-83
Really good calculator, everything works good, and is really really fast for huge functions. As a statistics major, im a bit dissapointed, because this calculator is missing alot of the random functions the ti-83 had. Everything else good, great buy.

4-0 out of 5 stars On a voyage.
I've had this calculator for a year and a half and I must say it has served me well. Unfortunately, it just pooped out on me. I tried to use it one morning and it would not come on. All it did since the last time I used it was sit on my desk. No drops or anything. I changed batteries and tried all the troubleshooting suggestions on TI's website. Still nothing. I'm still waiting for a response to my emails that I sent two days ago to the TI Cares support.
This thing was great while it lasted but now it looks like I'll have to get another one or maybe that newfangled TI-89 Titanium with the keyboard attachment.

5-0 out of 5 stars Best calculator when you are on move
I had long been an HP fan but Voyage change my perception about TI. When you use graphing calculator you don't need RPN notation. Voyage is one of the best calculator, with its large LCD screen and Qwerty keyboard you have much ease of entering any equation and it appears in the text book form. It does 2D polar plots, parametric plots, Direction fields and can plot in 3D besides solving differential equations of 1st and 2nd order. However its better to use Maple or Mathematica for 3D plots as they are much faster. It also has preloaded Statistics Package so it can do things like Hypothesis testing fot z test, t test, two sample test, chi square, Anova etc. An engineering package for Osculating circles, Rienmann sum, Curl, Divergence etc is also there, though I didn't find it of much help. However it has better algorithm than maple and mathematica for Double and Triple Integrals. If you are taking linear algebra then you can do things like eigen vectors and LU decomposition too, and with programming you can get Jacobian forms also. Good for Calc-I-II-III, Advanced Calculus and Dfeq.Upgrading software is a breeze with link cable and you have a access to a good application programs from TI to suit your need. Overall the calculator is neat, very intutive. It comes with a thin manual because you really don't need it.For other stuff you can visit their website or use the CD to look for any specific function

5-0 out of 5 stars A great product
The voyage 200 is the finest calculator that I have ever had. Its performance is remarkable and it is a user-friendly product. You do not have to remember in which button is the function that you need, or deal with buttons that have impressed three or more function in different colors. Just type the function and that is it. That is simple, is not it?

It is also outstanding the main menu and its easy navigation. You can customize it by adding software applications from the texas instruments web page. The "Computer Algebra" application can solve equations, integrals and much more. "Organizer" mades a nice calendar to schedule activities, classes, and keep track of the important business of you life. "Notefolio" and "Cell sheet" are applications that work as interface for text and data between calculator and computer.

The operative system can be downloaded to the calculator via USB cable with out problems. In conclusion, I believe that is a great product. Just be careful, so many features are not allowed in most of the standardized test and courses. ... Read more

6. HP 33S Scientific Calculator (F2216A)
by Hewlett Packard
list price: $65.99
our price: $47.49
(price subject to change: see help)
Asin: B0000DK6G9
Catlog: CE
Manufacturer: Hewlett Packard
Sales Rank: 513
Average Customer Review: 3.0 out of 5 stars
US | Canada | United Kingdom | Germany | France | Japan

Product Description

Includes Hewlett Packard 33S Scientific Calculator. ... Read more


  • Automatic power off
  • RPN and algebraic key-in logic
  • Easy-to-read 2-line LCD
  • Sturdy rubber/plastic construction
  • 32 KB memory, 27 memory storage and recall functions

Reviews (45)

1-0 out of 5 stars Not a real HP

I bought this calculator because I was afraid to lose my HP-15C while traveling.

I really dont like the calculator because the butttons are oddly shaped and as a result they are difficult to press.Great action on the buttons is a hallmark of great HPs (15, 48, 11, 32, 42 ...)

In addition the screen is difficult to read.

I was glad when mine finally died for some unknown reason.I mailed it back to HPs CEO and she was fired the next week.So... maybe my letter had some effect.

4-0 out of 5 stars HP 33s is on track but could use some improvement
As an engineer, I can see the problems that HP is having in the marketplace with its calculator line.The desktop computer and math software has taken a big slice out of the top end calculator market, and what is nice about the HP 33s is that its positioned as a professional tool that can be used when more complicated math applications aren't needed.I have sold my older 48g and 49g models and don't plan on replacing them.

My impressions of the 33s is that it is a good calculator.Most of the functions are very intuitive and the keys have a nice crisy feel to them.The sweeping keyboard pattern is very distinctive and the calculator itself is light but has a solid feel.However, the display can be difficult to read and the stack is limited to 4 lines.I am not sure how many lines the 32sII has, but it can't be any less and that calculator came out 20 years ago.Overall, I am happy with my purchase.

2-0 out of 5 stars Disappointing Calculator
I have used HP calculators since the very beginning in the early 70's.They were always the top scientific calculators until the early 90's.The best calculator for some time has been the TI-89.

However, what strikes me about the HP 33S despite the difference in appearance and extra capabilities is how much it is like the old HP 15C which was a great calculator when it came out in the early 1980's.I am convinced that this calculator uses much of the same architecture as the HP 15C.I think they used the 15C design and simply made improvements.

This is the problem with HP.I do not think they have been serious about calculator design for years.The HP 48 had serious design deficiencies (it was a lousy programming caclulator) and went for years without improvement.In fact the HP 42 of the late 80's was in many ways superior as a scientific calculator to this (the 33S), but for some reason was dropped.

I could go on for pages about the deficiencies of the 33S but basically I think it is obsolete.It has good qualities but it simply is not much more than the HP 15C of twenty years ago.Personally, I am finished with HP calculators.Unless they recommit to calculators in a serious manner, I regard them as history.

4-0 out of 5 stars Room for Improvement
Don't like: (1) calculator buttons that click, (2) tiny decimal point, and (3) memorizing correction procedures for built-in HP errors caused by deficient quality control.

After taking into account the above listed problems, the HP 33s is superior to TI-36X & Sharp EL-546V & Casio fx-115MS and is one of only a few calculators allowed with NCEES exams.

I have owned various HP scientific and business calculators, including 28s, and the 33s is a couple steps down.Someday HP may regret neglecting what they once did better than any other company on the planet -- designing quality calculators.

4-0 out of 5 stars Lighten up you Hater-Nerd-Milos out there!
I was very nervous making this purchase.Unneccesarily so...the HP-33s is a good calculator with terrific value.The engineers and scientists who have applied their robust intellects at reviling this product are over-doing it.The small decimal point is indeed an issue, but as another reviewer pointed out, just use fixed-point notation and you'll be fine.If you can't see it, you're not working/studying in an environment with enough light. So do something about it, don't blame the calculator.This flaw should not deter anyone from purchasing this calculator, are anal-retentive and stubbornly and childishly fuss about details.Not saying it's wrong to be that way...just know yourself...if you're like that, then the decimal point issue will bug don't buy it.Seriously people, how many times are you going to be working with the number 2,222,222.2222?As for complaints about accuracy when working with complex numbers and random number generation etc...I only have an engineer's background in mathematics, but I know not to do hard-core calcs with a mere calculator, even an HP.If it's your final project or thesis, use a computer with Mathmatica or Excel or MATLAB.For people like me (studying for the PE), this calculator is a fresh update from the 32SII. HP could have done better, but didn't do THAT bad.I think some reviewers with a noticeably left brain tendency are focusing some frustration from their social lives on this poor innocent calculator. I would have reversed the direction of the that the 'V' shape was pointing toward the display, not down toward you.This better matches the natural configuration of your hands. It's well-built and lighter.It looks sexy...the same people complaining about the design are out of touch with current design trends and aesthetics...they've been trapped in the basements of post-mondernist, utilitarian technical schools or companies and haven't cracked a copy of Wallpaper* magazine or seen the latest line of Infiniti luxury automobiles.This calculator takes a step closer to being GUCCI and a step away from being GRANDPA.So much complaining about the colors...this is from people that probably haven't bought a fresh tie in years.A chick in the library or coffee shop might actually come over and pick it up and start talking to me. The signature HP characteristics are there:RPN capable (algebraic is bonus, but not really needed for me), clicking keys that offer clear assurances of crisp, definite key strokes, powerful features that attempt to meet the needs of everyday engineers, scientists and other technical practioners.They're trying to meet the requirements of a wide range of users. Of course, not any one group will be happy.The endless whining over the location of things like the ENTER button shows the silliness of some of the reviewers.How much complaining do people do when they buy a new cellphone and the menu button is different?It's not a big deal because you get a new cellphone like every year, unlike these guys who are probably still using their first calculators.I would have put the ENTER button next to the C button, but then you might accidently clear your registers, doh! At least switch the 0 and the '.' buttons, so that the numbers would match a phone keypad, which we all use and know. Anyone who knows really smart people, knows that they sometimes get worked up over little , nit-noid details.Think the guy from Office Space that was annoyed over the red stapler. If that is the case for you, then drop on a -48GX on ebay for $100, but if you want the 32SII with a new, slick exterior, then the -33S is for you. Don't listen to the haterz!For the record, I'm a HP vet with an -11C, -28S, -32SII, -48GX in my history. ... Read more

7. Texas Instruments TI-84-Plus Silver Edition Graphing Calculator
by Texas Instruments
list price: $129.99
our price: $132.04
(price subject to change: see help)
Asin: B0001EMM0Q
Catlog: CE
Manufacturer: Texas Instruments
Sales Rank: 1181
Average Customer Review: 4.0 out of 5 stars
US | Canada | United Kingdom | Germany | France | Japan

Product Description

This brawny brainy Texas Instruments TI-84 Plus Silver Edition graphing calculator is fully compatible with the popular TI-83 family of calculators. It also boasts 2.5x the speed and 9x more memory than the TI-83 and is permitted for use on many state and standardized tests. Features: new improved LCD; official AP Biology review questions are included; USB cable for instant computer connectivity; student units will connect with adapter to the View Screen panel or TI Presenter; preloaded with personal study tools like Organizer and Study Cards; 24K of RAM; 1.54MB of Flash ROM; and loads of classroom software including Probability Simulations, Inequality Graphing, Topics in Algebra, Area Formulas, Cabri Jr., GeoMaster, Conic Graphing, Transformation Graphing, Polynomial Root Finder and Simultaneous Equation Solver, CellSheet, Study Cards, TimeSpan, Science Tools, Periodic Table, and Fundamental Topics in Science. ... Read more


  • Split screen, displays graph and editor or graph and table
  • Fully compatible with TI-83-Plus family calculators
  • 1.54 MB of RAM, 480 KB Flash ROM; 30 pre-loaded Apps
  • Advanced statistics and financial features
  • Built-in USB port and I/O port; unit-to-unit link cable

Reviews (8)

3-0 out of 5 stars waste of money
This calculator is a waste of money.If you need a graphing calculator, buy the 83+ or just the plain 84.The 84 is really bulky and not a real improvement on the 83+, the silver edition 84 is even worse - the white looks terrible, and the color face plates are even worse.If you're gonna buy an 84, you should just stick with the regular'll save some money and the blue looks better than the white.You're not getting anything more than what you'd get with the 84.

5-0 out of 5 stars The best i have ever used
This is the best calculator is the best i have ever used. It has a lot of great Apps. it has most of the basics for physics, chem, algebra I & II and a lot more. The keys are also very bright and easy to read. So if u r planning on buying a new graphing calc, go check this this out

5-0 out of 5 stars Wonderful calculator, DON'T BUY A TI83
I got a TI83plus but then it broke. That was probably the luckiest thing that could happen. This calculator is great!! Its fast, its pretty, and its really useful for school. DON'T EVEN LOOK AT THE TI83s BUY A TI-84-Plus Silver Edition Graphing Calculator ITS WORTH THE MONEY!!!!

2-0 out of 5 stars TI-89 Titanium
Ive used this calculator for awhile, then switching to the TI-89 Titanium I realized the TI-89 Titanium is in so many ways better then the TI-84 Plus Silver Edition. The TI-89 Titanium has a Symbolic Math Guide which will show you the answer and the steps it took to solve it. Either get a TI-89 or TI-89 TItanium!

5-0 out of 5 stars I Loved It!!
This calculator is great! If you download some of its applications, it can help you with almost all subjects in high school and some courses in college. You can share information with other calculators and recieve application information. It not only helps you with math courses, but with science and other courses. It's helping me, and it could help you too. ... Read more

8. Texas Instruments BA II Plus Advanced Financial Calculator
by Texas Instruments
list price: $45.00
our price: $27.49
(price subject to change: see help)
Asin: B00000JZKB
Catlog: CE
Manufacturer: Texas Instruments
Sales Rank: 438
Average Customer Review: 3.5 out of 5 stars
US | Canada | United Kingdom | Germany | France | Japan

Product Description

Texas Instruments (BA II PLUS) Texas Instruments, Inc. BA II Plus is a calculator with slide case included. ... Read more


  • Slide case included
  • Easy to use
  • Performs advanced cash-flow analysis
  • Advanced statistics capability
  • Ideal for business professionals and students

Reviews (44)

2-0 out of 5 stars Terrible Usability, I Don't Like
Nice things about this calculator are it's good looks, simple interface, and price. But, maybe it's just too simple. Personally, I feel this calculator is not pleasant to use.

1. Awkward viewing angle. The LCD is positioned such that you can view it only if your sitting back. Forget about looking straight down while solving problems. You'll be greeted by a terribly dim display.
2. Button response is bad. For a $30 calculator, I expected the buttons to be at least decent. They're not. If you're like me, and are capable of quick entry (sometimes even with 2 hands) and enjoy responsive buttons, you'll be disappointed. The buttons are not firm to the touch and just feel cheap.
3. Lacks slightly more advanced features. While the interface is easy to use and the basic features expected of a financial calculator are there, I think TI has room for some more. For example, there is no Option Pricing feature. That would have been great.

For students (like me) who have worshipped the TI-8x's, the BAII is just horrible to even touch. Nonetheless, most people will find this calculator to be decent, at best. Really, don't expect any surprises, as this is as basic as it gets. For real value, perhaps invest a little more in an HP.

4-0 out of 5 stars A first look at the New Look TIBA2+
BA2+ users may like to know that Texas Instruments has released a "new look" TI BA2+ (allow me to call it it BA2+N), which may come with just more than cosmetic improvements over the popular BA2+.

I was able to observed from a short distant away that the LCD display of the BA2+N,is clearer and more contrasty than the orginal BA2+ which I own. TI gets a thumbs up for doing this improvement quietly plus giving a facelift to this already highly regarded value for money business-financial electronic calculator.

Although I have not yet been able to test the BA2+N, TI may have also incorporated some improvements and killed some bugs on the popular BA2+. It is also probable that some improvements or new functions incorporated on the September 2004 released BA2+ Professional (BA2+PRO) may also have been also incorporated into the specs of BA2+N.

I would like to believe that some small but extremely annoying bugs of the "original" BA2+ has been quietly fixed on the BA2+N. In particular, I wish to see the "Reset" button nuisance which clears all user input formatting on the BA2+ has been done alway with. Most users of BA2+ would know that an accident user soft reset would return to the default Number of Periods per year P/Y to 12, this would upset the results of many TVM calculations when user has set the P/Y to "1" to use the calculator in "number of periods" instead.

I was not able to exam a unit of the BA2+N to see if end users would still need a screw driver to unscrew and pry open the BA2+ casing just to replace the CR2032 battery. It would be nice if TI would incorporate a user accessible slide open battery compartment for the BA2+N or future upgrades of the BA2+.

Would be buyers should get hold of the BA2+N or buy the BA2+PRO if you have a bigger budget. Budget conscious users could see that for the price of a BA2+ PRO, a screw driver and spare batteries, new users could afford to purchase for themselves two sets of BA2+N.

An advantage of having a spare BA2+N set on hand is that users could free themselves from the trouble of carrying a philips screwdriver and replacement lithium batteries to important assignments or to the examination centre.

HOW DIFFERENT DOES THE BA2+N LOOKS? I have downloaded the BA2+N JPEG picture from TI's calculator site and posted it to the Amazon's picture gallery.

IMPORTANT NOTE:I have commented on the BA2+N as an end user and I don't work for TI, HP or any of the manufacturers for the products which I have used, reviewed and posted my comments on the pages of It is my pleasure to be able to share my first look at the BA2+N with you, thanks for reading!

3-0 out of 5 stars CFA users Choose TI BAII Plus
This review is directed toward those taking the CFA exams.The TI BA II plus calculator is more straight forward than the HP 12C for the range of questions asked on the CFA.The BA II Plus calculates faster than the HP, and is less expensive.

If you need the button quality and durablity of the HP 12C unit, upgrade and buy the TI BA II Plus "professional" - this unit has a brushed aluminum case and buttons similar to a HP 12C and costs around $50 - similar to a HP 12C.

When doing uneven cash flow problems the registers to the TI are all labeled so you can quickly enter data giving greater confidence with improved speed to your answers for NPV and IRR calculations.

I still have two or three HP 12C's around, but they aren't as intuitive as the TI for the CFA Exam.If you are taking the exam - the TI is the way to go.

3-0 out of 5 stars man, this thing's annoying
If not for the fact that this calculator is required for the CFA i don't know why anyone would buy it.
It takes many, many keystrokes to get simple things done, and let's face it, in the real world i'd much rather work out a complex NPV calculation in excel where i can see what i'm doing step by step rather than some arcane series of keystrokes where one mispressed key will screw everything up.
Also, my unit suffered from poor battery life, which i assume is a manufacturing defect.
A word of advice for students who can use a more advanced calculator: get a ti-83 or similar, learn to use it, and you'll be much happier. I find myself using the ti-83 i got in college rather than my financial calculator all the time.

2-0 out of 5 stars Easy to make mistakes
I got this calculator free on a financial course I am taking.It is easy to use but what others say about getting wrong answers seems to be down to the operator buttons on the right hand side being out of line with the main keypad.So you have to watch what you are doing.This and the fact it seems to take so many keypresses to get anything done makes it cumbersome.It is a reasonable calculator for starting out but I would not recommend it if you are in a hurry eg. sitting an exam. ... Read more

9. Texas Instruments BA II Plus Professional Calculator
by Texas Instruments
list price: $70.00
our price: $47.49
(price subject to change: see help)
Asin: B0001EMLZW
Catlog: CE
Manufacturer: Texas Instruments
Sales Rank: 790
Average Customer Review: 4.0 out of 5 stars
US | Canada | United Kingdom | Germany | France | Japan

Product Description

Time/value of money. Mark up/down. Amortization. Interest rate conversion. Cash flow (NPV,IRR). One variable statistic. Linear regression. Date calculations. Cost/sell margins. Leather case includes. Manufacturer's 1 year warranty. ... Read more


  • Soft carrying case; 1-year warranty
  • NFV, MIRR, Modified Duration, Payback, and Discount Payback functions
  • Easy-to-read 10-digit display, 10-number memory
  • Comfortable firm-touch keypad
  • Ideal for the Chartered Financial Analyst exam

Reviews (14)

2-0 out of 5 stars Horrible "feel" and cheap case
The buttons are horrible...I can't tell you how often I have to retype numbers because the calculator did not capture my input.The buttons have a "sticky" feel and are small.Also, the case is a cheap attempt to emulate the strength and durability of the HPs (I hate the 12C...but I think its design and durability has not yet been matched).

3-0 out of 5 stars Slow Input
This is a great calculator, but when you input numbers fast, they do not always register.If you buy this calculator, input 1,2,3,4,5,6,7,8, and 9 as fast as you can.You may encounter some numbers not registering even though you hear the number click (as if the number was added).This was not a problem with the BAII Plus.This is a huge disadvantage to this calculator.

5-0 out of 5 stars Major improvement from BAII Plus
Compared to BAII plus, it is much heavier with the metal cover. Too light is a disadvantage for the old model. Now, this one won't jump around when you punch the keys. The pros of HP 12C says that one is like a tank. This one is just like a samller tank, maybe.

The display is another major improvement. The view is clear and won't change for different angle. This won't be a worry on your CFA exam.

Keys are harder to punch; this is a bad feature for professionals. But it is not that bad as long as you can hear the "click", which is not that hard, the number will be there. People with less strength on their finger will complain too.

Easier to change the battery, though you might worry it is too easy. Don't open the cap too often will help. The good news is you no longer need to carry around a skrew driver on you exam day, only the battery.

4-0 out of 5 stars Great product, cheap case
Just to clarify, this is a financial calculator, essentially the same calculator as the "Texas Instruments BA II Plus Advanced Financial Calculator" but with a cosmetic make-over.

- Very attractive appearance.
- Nice "firm-touch" keypad.
- A couple of additional functions (compared to the BA II Plus Advanced).

- Leatherette soft case instead of hard case.
- Approx. $21 more (at time of writing) than BA II Plus Advanced.

This is a very nice calculator.It is full-featured financial calculator with an attractive appearance.The brushed metal facehas a polished metal inset to highlight the primary financial function buttons. I like the button layout (which is the same on both the Professional and Advanced models), and preferred it over that of the HP 10bII financial calculator, which I thought had poorly-marked non-financial functions.

The calculator has a solid feel that is consistent with its metal look, and that is further reinforced by the "firm-touch" keypad.Personally, I like the feel of the firm-touch keys and prefer it over a regular keypad, as is found on the BA II Plus Advanced.

My one complaint about the BA II Plus Professional (and the reason I rated it as 4 stars instead of 5) is that it has a soft case instead of a hard case. While the soft case will help protect from superficial marring, it won't protect the calculator from impact or pressure damage, or from accidentally pressing buttons (such as "On") when carrying it.For the extra $21 more than the Advanced model, it would be nice if the Professional model came with a case that will actually protect it.

- If you plan to keep your financial calculator around for a while or will use it a lot, and want something nice, then I would recommend this calculator. (I basically think of it as an investment in something I will continue to use for several years.)

- If you think you would prefer a more firm-feeling keypad, then I would recommend this calculator.

- If you are just buying a financial calculator for a finance class and don't plan on getting much use out of it afterward, and don't need the additional functions of the Professional version (which are advertised as being "Net Future Value (NFV), Modified Internal Rate of Return (MIRR), Modified Duration, Payback, and Discount Payback"), then I would recommend saving some bucks and getting the Advanced model of the BA II Plus.

5-0 out of 5 stars Easily better than ANY current HP--and 1/2 the price!
Have been a stalwart HP financial calculator user for over two decades...started with an HP41 in college with financial templates.I always admired HPs for the durable build, ease-of-use (once you got over the RPN hurdle) and displays.I finally needed to replace my over decade old HP 12C and the newer HPs simply do not impress me.Cheaper (as in WAY cheaper!) build...the HPs that came from Malaysia were fantastic calculators...solid keystrokes, superior grade of plastics, the whole nine yards.The newer HPs are made of a plastic that is a giant step backwards.The keys are now laughable, no 'HP Feel' to them at all.

I took all of this in and thought to myself, 'I guess everything is getting cheaper, nowadays...'.Then I ran a NPV calculation at the store and was downright shocked to see it ran slower than my old HP.The one thing I thought MIGHT save the purchase (i.e. cheaper plastic but faster processor) didn't happen.I tried all of the newer HPs...the one display model of the OLDER HP12 (the non-Platinum model and still made in Malaysia) definitely runs TVM calculations quicker.This is NOT how to impress old bankers with a new product.

Time to check out the Texas Instruments BA II Plus Professional.At first glance, to an old HP user, I thought it really LOOKED TI-ish; that is to say, very non-HP.But upon pressing a key or two, I was impressed that TI at least made an attempt at obtaining the old 'HP Feel' to their keys.Not as 'pretty' as HP's angled keys, but good tactile feedback and get this:If you'll hold up the TI BA II PP horizontally and sight down the keys, you'll see they are actually angled!Nice touch, TI.

Nicely laid out TVM section (my only reason for owning a financial calculator, thus supremely important to me) and intuitive to boot.Speed of calculation simply SMOKES current HPs...there is absolutely NO CONTEST.A complex Internal Rate of Return took two to three seconds.TI hasn't been simply sitting around and 'repackaging' anything; whatever is under the hood of this calculator is current and fast.

The rest of the calculator is nicely laid out...keys are pretty much TI convention, which to me is different.I miss a prominent ENTER key.

Likes:I like TI's 'CHAIN' calculation mode.It's similar to RPN without the ENTER keystroke.Remember this if this is your first financial calculator:Most financial calculations are run in CHAIN or RPN mode (and, sadly, no, the TI doesn't support TRUE RPN), not the Algebraic Operation System (AOS).To TI's credit, the calculator defaults to CHAIN calculation (for newbies, this just means that the calculator runs the operation AS IT IS ENTERED; NOT following Algebraic heirarchy of operations).But it is nice that TI recognizes how financial people enter calculations and, unlike other TI calculators, AOS is NOT the default entry mode.

Love the fact that the compounding rate is defaulted to 1, not 12 (HPs always default to 12).Love the fact that interest is always entered as a whole interest number (it divides it for you, automatically).Good, not great, manual.Battery access is very easy.Quality looks genuinely good, but time will be the only final arbiter on this one, but the product appears to be (in my highest compliment) equal to older HPs in every respect.

Dislikes?Quibbling ones to be sure, but the compounding rate mentioned above is a pain to get too; I must have looked 30 minutes in the manual to finally find it (hint: you have to use the Down Arrow key to roll through a series of selections to get it...and it's NOT the first choice).Wish for (on all financial calculators, not just TI) normal AA or AAA batteries...why the manufacturers have to insist on the round, hearing aid style battery is beyond me.I mean, really, how big is a AAA battery?

Wish TI would step up to the plate and offer some mortgage/realty functions in a financial calculator without forcing a user to own 2 calculators.Wish it were programmable, which is just a follow-on to the mortgage/realty/specialized functions.

If TI offered this same model with enhanced functions, programmability and a normal battery, HP could give up the calculator market.

As it stands, a worthy heir to the older HP calculators.I'm sorry to see HP cheapen the product so badly, but TI will gain market share on this one.A solid keeper. ... Read more

10. Texas Instruments TI-84-Plus Graphing Calculator
by Texas Instruments
list price: $109.99
our price: $107.34
(price subject to change: see help)
Asin: B0001EMM0G
Catlog: CE
Manufacturer: Texas Instruments
Sales Rank: 3056
Average Customer Review: 4.0 out of 5 stars
US | Canada | United Kingdom | Germany | France | Japan

Product Description

This Texas Instruments TI-84 Plus graphing calculator is faster than the popular TI-83 and it's fully compatible with the TI-83 family of computers. A split screen function lets you display graph and editor or graph and table. Features: permitted for use on many state and standardized tests; keystroke-for-keystroke compatible with the TI-83 Plus; new style and an improved LCD; 2.5x more speed than the TI-83 Plus; 3x more memory than the TI-83 Plus; USB cable for instant computer connectivity; preloaded with more software for classes including Cabri Jr. interactive geometry software; and all student units will connect with an adapter to the View Screen panel or TI Presenter. ... Read more


  • Split screen, displays graph and editor or graph and table
  • Fully compatible with TI-83 Plus; now faster, more memory
  • Advanced statistics and financial features
  • Built-in USB port and I/O port; unit-to-unit link cable
  • 11 pre-loaded Apps, including Cabri Jr. and Science Tools

Reviews (6)

4-0 out of 5 stars less is more.
I am on my third TI-83+ (my first two were stolen).My brother owns an 84, and I can tell you that it offers nothing that the 83 doesn't have.Many of the preloaded apps are useless (an address book?please!), and take up so much space that the memory increase is worthless.The 84 is a continuation of TI's tendency to offer huge amounts of style with little or no substance.I prefer the 83 for its streamlined design.The one improvement is that the slip cover on the 84 does not become loose with a great deal of use, which is a problem I have encountered with my three 83s.It looks as though the USB connectivity could be a plus (for the 83, you had to buy a separate connectivity kit to connect to a PC), however, most buyers will not need to connect their calculator to their PC.

5-0 out of 5 stars VERY helpful!
Since I am in the higher math, I really needed a graphing calculator. So we saved up some money and got this.... and it helps so much! I don't really have anything to compare it too.... it is good for people in algebra and up though. and just fun to mess around with :D

5-0 out of 5 stars Best School Supply Ever!
This calculator is hands-down the best I have ever had the honor of using. While the TI-84 Plus may not have as much space or as many pre-loaded Apps as the TI-84 Plus Silver Edition, the TI-84 Plus offers everything a high school (possibly some college) math student needs in order to successfully learn and solve mathematics material. The TI-84 Plus comes loaded with several Apps that will make things even more convenient, such as a Probability Simulator and Cabri Jr., a great geometry app. Student looking to upgrade from the TI-83 Plus will find comfort in the fact that the TI-84 Plus is 2.5x faster and has 3x the memory than the TI-83 Plus. The TI-84 Plus is also extremely easy to hook up to your computer to transfer new Apps and updates to it using the USB port and the included USB cable. The TI-84 Plus will be a great investment for any student's education.

5-0 out of 5 stars A great improvement on the TI-83 Plus
The new TI-84 Plus is a wonderful calculator.If anybody has had the TI-83 or 83 Plus, they know how easy and reliable it is.The 84 Plus is an all-around imprivement on the older version and even worth the additional $15-$20.I have had it since school started and have noticed than any problem I enter, it is solved immediately upon pressing enter, or solve.The speed is a great improvement over the 83-Plus.The computer features are nice, but rarely used by myself.For anybody who is supposed to buy a TI series calculator for school, the 84 Plus us definitely the one to pick up this year and for the next few years I assume.Easy, fast, reliable, durable, and even sleek.As long as you handle it properly and use it enough, you will get all of your $110 out of the TI-84 Plus.

1-0 out of 5 stars DIFFICULT TO USE!
i bought the calculator to school, after countless times of plugging it to the computer and trying to send stuff, it diddnt work. What infuriated me the most was that after paying 110 dollars for the thing, texas instruments website didnt give me an answer. ... Read more

11. Texas Instruments TI-89 Advanced Graphing Calculator
by Texas Instruments
list price: $190.00
(price subject to change: see help)
Asin: B00000JF55
Catlog: CE
Manufacturer: Texas Instruments
Sales Rank: 1816
Average Customer Review: 4.5 out of 5 stars
US | Canada | United Kingdom | Germany | France | Japan

Product Description

MODEL- TI89TITANIUM VENDOR- TEXAS INSTRUMENTS FEATURES- TI89 Titanium Graphics Calculator Introducing TIs most powerful graphing calculator: The TI-89 Titanium, offering new features, preloaded Apps, and even more versatility. A built-in USB port makes data transfer ultra- convenient. Plus, with three times the memory of the TI-89, you can store more Apps, data, and programs. The TI-89 Titaniums advanced functionality and 3-D graphing make problem-solving for AP advanced mathematics and engineering courses infinitely easier. It is the most powerful TI graphing calculator allowed for use on the AP Calculus, AP Statistics, AP Physics, AP Chemistry, PSAT/NMSQT, SAT I , SAT II, and Math IC & IIC exams. Includes calculator with preloaded applications, USB cable and a Product CD (full reference manual, free apps, and more).* Electronically upgradeable graphing calculator gives you the most up-to- date functionality and software applications (Apps).* About 188K bytes of user-available RAM* About 2.7 MB of user-available Flash ROM for data archive and Apps (3x the Flash ROM memory of the TI-89).* 100x160 pixel display* Internal clock with date and time display* Icon desktop that allows easier access to Apps and editors* USB port for computer connectivity, unit-to-unit communication with TI-89 Titanium graphing calculators, and more.* I/O port for communication with other TI products* USB unit-to-unit link cable included * TI Connectivity Cable included* TI Connectivity Cable and TI Connect software allow information to be transferred to and from a computer and printed or stored on disk.* Included Apps: CellSheet EE Pro Finance French Localization German Localization NoteFolio Organizer Polynomial Root Finder Simultaneous Equation Solver Spanish Localization Statistics with List Editor (English, French, German and Spanish versions). StudyCards Symbolic Math Guide* Apps are available from TI and other leading developers.* Advanced Mathematics Software functionality is suit... ... Read more


  • Over 500 KB memory for storing functions, programs, and data
  • Pretty Print technology displays mathematical expressions as they appear in textbooks
  • High-resolution display with split-screen views
  • Computes symbolic solutions to differential equations
  • Input/output port and cable; also supports optional TI-GRAPH LINK

Reviews (160)

4-0 out of 5 stars Excellent but user unfriendly
THis machine does it all provided that you learn how to use it well. I spent quite some time on this calculator and I am very confident using it now. However it could have been more user friendly.

5-0 out of 5 stars DO NOT BUY unless you are in calculus
PUBLIC SERVICE ANNOUNCEMENT:This is a fabulous calculator (thus the five star rating), but inappropriate for students in math below calculus.Below calc, most courses that require a graphing calculator are geared towards the 83/84, so unless you are very comfortable with the 89 it may prove difficult to translate in-class activities onto an 89.Do not even THINK about buying this calculator unless you are taking calculus or a calculus-based course.Stick with the 83/84.

5-0 out of 5 stars Sweet Calculator (For Calculus ETC)
Awesome calculator. Last class I used it for was Calculus for Engineering I. I like the "pretty print" which will display equations exactly as you would right them. The calculus tools, and the resolution of the screen, and the ability to scroll through previous equations.

My favorite T1 so far that I've used.

5-0 out of 5 stars Essential for Calculus and beyond
Once the essentials are learned in any field, its great to have a tool to do the busy work quickly.The Ti-89 calculator by Texas Instruments performs all the functions you'll need to do this busy work.Being able to use SmartText to display integrals, differentials, taylor series sums, etc. allow the user to clearly identify any mistakes.A lot of technology has been pumped into this little machine seeing as calculator programs are written using only the functions +-/X.There are many submenus's withen keys that are color coded for easy recognition as well as on-screen displays for menus.Dual menus are also handy for comparing graphs and calculations.Programming is a sinch with the instuction book and downloading programs is possible with the add-on cable.There are thousands upon thousands of programs written for math, economics, accounting, etc. that will allow the user to drastically expand the functionality of this calculator.5 Stars.

5-0 out of 5 stars Great Calculator
I bought this calculator after having used a TI-83+ for a few years. The power in this little machine is incredible (and in fact uses the same processor as the Macintosh Classic computer from 1991) and the display resolution is fabulous, especially compared to the older calculators. While I have yet to use some of its more advanced functions, the ones I've used have been great. Some of the functions from the TI-83 are moved and take a bit of adapting, but after a few weeks you'll love the menus so much you'll never want to use a TI-83 (or a regular scientific calculator) again. ... Read more

12. Texas Instruments TI86 Graphing Calculator
by Texas Instruments
list price: $150.00
our price: $105.44
(price subject to change: see help)
Asin: B00000JF53
Catlog: CE
Manufacturer: Texas Instruments
Sales Rank: 4928
Average Customer Review: 4.5 out of 5 stars
US | Canada | United Kingdom | Germany | France | Japan

Product Description

Texas Instruments (TI86GRAPHICS) Texas Instruments, Inc. TI-86 is a graphing calculator with 8 display lines, displaying 21 c ... Read more


  • Input/output port
  • Graphing functions
  • Powerful calculus features
  • Function evaluation table
  • 128K RAM with 96K user-available

Reviews (38)

5-0 out of 5 stars The Most Straightforward Calculator Available
I have the TI-89 Titanium and the HP-49G+, both are excellent calculators especially for programmers.But if I need to have mathematical models/programs, I use Mathcad or Matlab on my PC anyway, hence, I don't use the TI-89T or HP-49G for that purpose. Although there are fancier/faster models available now, the elegant keypad and menu system of the TI-86 is unmatched.For me and for most people I know (mostly fellow engineers), the TI-86 (and HP-48GX) are the perennial favorites.There is a dramatic difference between the TI-86 and the TI-89 as far as the menu system goes.The TI-89 has so many functions that the only way to really implement it is through a "windows" type menu system.The TI-86 on the other hand, has all the critical functions on the keypad - which is more efficient.(i.e. x^2, 1/x, complex, convert, log, etc..... are all built-in to the keypad of TI-86).

Indeed, the TI-89T and HP-49G+ are faster, has more functions, and has more memory than the TI-86.But for the day-to-day engineering and scientific calculations, I think the TI-86 is far more efficient and straightforward.

3-0 out of 5 stars Best Graphing Design but problems with wear and tear.
i am actually shopping for an HP49 or similar. My experience with two calculators from texas instrument the TI86 and TI83+ has been positive and actually excellent if ease of use and graphics performance is the criterions. They are very well designed and the graphics as of the last generation TI's were superior than there previous hp48g.
However, the problem with both the TI86 and TI83+ is in how long they last. I bought a used TI86 in about 1997 and it lasted maybe one more year before it stopped working correctly. Recently a TI83+ I had which from the standpoint of functionality was a fine calculator stopped working after generally light use after 5 years. considering I used relatively infrequently, I wasn't satisfied.I used to own an early HP back in the 80's and it never stopped working for at least 6 or seven years until it was stolen out of my backpack. I was loyal then to them, but the last generation of calculators seemed to have some design flaws(hp48g) particularly around graphics. This generation seems to be immitating the TI's now and if they are built as well as the early ones, it is worth paying a little extra. But i haven't tried them out yet.
The last one I had(48g) was stolen or lost somewhere I believe but it continued working fine for maybe two years.
After spending onehundred plus dollars Iexpect more from a calculator in terms of wear and tear.

5-0 out of 5 stars Very Useful calculator
I bought this around mid 1997 and I'm still using it to this day.
It's helped me through AP Calc, Calc II, Calc III, Differential Equations, Advanced Engineering Math, SATs, GREs, Fundamentals of Engineering exam for EIT certification, and etc...

I actually bought a TI-89 around soph year of college just to complement the TI-86.

You see, the TI-86 is a SOLID engineering calculator. It's got fast units conversions, an intuitive and FAST menu system BUT it lacks "pretty print", handling of units for math (keeps the units throughout equations, calculators), and integration/differentiation with the variables in place (it doesn't just evaluate it). With the right software, the TI-89 is a very powerful math tool.

I used the TI-89 primarily for theoretical math but came in handy for standardized tests as well.

I would recommend getting both the TI-89 and TI-86 and start familiarizing yourself with both calculators before you start tackling tests. Check the rules and regs for calculators also - standardized tests should allow the use of the 86 and 89.

Overall, the TI-86 is a solid math tool - notice I say TOOL because that's what it is. If you have no idea what you're doing in class, the TI-86 won't give you an A.

My recommendation is to get both the TI-86 and TI-89.
Just FYI, I'm still using the TI-86 at work. The buttons show some wear and I lost the first line of the LCD because I dropped it in college. Nonetheless it's still chugging along.

Also, slap in four 750mAH NiMH batteries. You will NOT regret this because these calculators drain alkaline batteries in half a semester of intensive use. We didn't have cheap NiMH batteries back in the day - TI actually pushed the use of Rayovac Renewals (remember those rechargeable alkalines that only lasted 5 charges?) and our other choice was NiCd. Forget all that. Slap in four Energizer 750mAh NiMH batteries and you'll save yourself a LOT of money in the long run. That means more money for video games and other forms of entertainment in college.

5-0 out of 5 stars Need a calc for engineering work?
Or require lots of fast unit conversions?

Get the TI-86.

It's menu system is extremely intuitive and easy to use. You can fire away units conversions and simple math w/o running into any problems. In Comparison, the TI-89 is more powerful, has a better CPU, and has more memory - but the TI-89 shines in its simplicity. It's quite powerful in the right hands and is more useful in the workplace. The TI-89 is more suited towards the classroom environment.

I bought one of the very first TI-86's in 1997 and used it throughout high school, college, and a few graduate courses. I still carry it around at work because it's been a big help.

I dropped it once and lost the first 2 lines on the LCD, but it's still chugging along fine.

Just get 4 NiMH AAA batteries and you'll be fine for years to come. I made the mistake of using Alkalines, Rechargeable Alkalines, and NiCD batteries back in the late 90s when NiMH's weren't readily available.

5-0 out of 5 stars You got to know whats up( From a programmer, I know. )
I used to have a ti-83, and a ti-83+, but the 86 is the best of the three. I am real into programming the calculator. The 86 can have variables and Lbl's with up to 8 charectors, opposed to 2 for the 83, 83+. It can store almost unlimited amount of pics, unlike the 83,83+, which can only store 10. The calculator also does conversions. Everything from temp to energy to power, making it save all that time on tests and homework. I read another review that said it could not do absolute value(which is called abs), and convert fractions to decimals(>frac, and >dec), but it can. They aren't under a bunch of subfolders either, because you can easily create your own custom menu to paste anything you want on the screen. This way is even faster. It also comes with an excellent instructional manual. By far the best choice between 83, 83+, and 86. ... Read more

13. HP HP48GX RPN Expandable Graphic Calculator
by Hewlett Packard
list price: $265.00
(price subject to change: see help)
Asin: B00004TFKZ
Catlog: CE
Manufacturer: Hewlett Packard
Sales Rank: 13130
Average Customer Review: 4.5 out of 5 stars
US | Canada | United Kingdom | Germany | France | Japan Review

Hewlett-Packard's HP 48GX is the most powerful calculator in the 48 series, offering the same advanced calculation and programmability features as its siblings, along with expansion options that should appeal to power users and programmers. All this is made possible by the expansion card slot, which lets users expand the built-in memory from 128 KB to a maximum of 1.256 MB or install application software that adds more advanced features to the calculator.

The 48GX is no slouch. Its colorful array of buttons lets users tap into 2,300 built-in functions, 300 of which are built-in formulas and scientific constants that encompass the spectrum of the mathematical and scientific fields. It handles everything from basic algebra equations to advanced trigonometric and statistical calculations. Best of all, if the 48GX doesn't have a feature you desperately need, you can use the built-in object-oriented programming language to create functions from scratch. You can then label your creations and access them as you would any other feature that is integrated with the calculator.

The 48GX uses reverse polish notation (RPN, also called postfix notation), which can be difficult for beginners to grasp, but advanced students and professionals will appreciate RPN's elegance and relative simplicity. An optional connectivity kit lets users connect the device to a PC to download new equations and software, and the integrated infrared port lets you share data with other calculators or output your graphs, plots, or other results to a separately available infrared printer. Typical students may want to opt for a less expensive (and less expandable) calculator in the 48 series, like the 48G+, but for those who demand the best and may need more than 128 KB of memory, the 48GX is the clear choice. --T. Byrl Baker


  • RPN can speed data entry with practice
  • Expansion slot adds extra memory and software options
  • Programmable, so you can add nearly any feature you like


  • Cluttered keypad
  • Learning RPN and basic object-oriented programming can be daunting for the uninitiated
... Read more


  • Over 2,300 functions including over 300 for scientific and engineering applications
  • Built-in equation library with over 300 formulas and constants
  • 2-way infrared communication, RS-232C serial port; supports optional printer
  • 128 KB memory; 2 card ports for expandable RAM and ROM
  • 2-D and 3-D graphing capabilities

Reviews (36)

5-0 out of 5 stars Stack is different.This required learning
To store '5' on the HP48 line of calculators, hit 5 [enter].It's stored.You can even see where it's stored right away because you're always looking at the bottom four stack entries.It seems the previous reviewer believes that the way TI does calculators is the way calculators should be done.If that's you, buy a TI.Storing a value in a named variable is a fundamentally different way of thinking about calculation from the way HP decided to do it.

With RPN, there is very rarely any need for a named variable and it only took me about an hour to start using this calculator for fairly complex EE homework.One of the things I noticed about RPN fairly quickly is that if you're doing complex calculations, you'll often build up intermediate values and then bring the intermediate values together at the end.My study-buddies were always writing down their intermediate values, I just left them on the stack while I did the other calculations.More often than not, those previously calculated values were exactly where I needed them when I needed them later.Everyone else was punching back in the values that they had previously written down (with the possibility of error on each transcription) or trying to remember which variable they had stored them in.

I don't mean to ding the TI approach, I used to work at TI and I think they make a great product.I simply think that the HP has a subtly better philosophy of calculation and a massively better keyboard in the 48s/sx/g/sx line of calculators.

5-0 out of 5 stars The Mercedes Benz of Calculators
Being a college professor of Electrical Engineering for over 30 years, and having used numerous brands and models of calculators and having written reviews of some of them for various publications, there is no doubt in my mind that the HP48GX is indeed head and shoulders above all the other calculators (even the HP49).The RPL entry system is a natural and easy to learn process that mimics the pencil and paper approach that we've all learned in Grammar school arithmetic.The efficiency of input and the ease with which it handles comlex-number calculations is second to none.Formulae can be entered with mixed units and the calculator automatically performs internal conversions to present the answer in whatever valid units you desire. It handles 2-D and 3-D vectors with all the corresponding mathematical operations seemlessly. The infrared connectivity (wireless) and RS232 port (wire) both allow communication between another HP calculator and your computer.This calculator has the right mix of 'function per key' versus 'menu per key' that makes it very easy to negotiate.
One can enter a formula in algebraic notation and the calculator can solve for one of the variables in symbolic and/or numeric form (if all the other vales are specified). The keystroke error recovery facility is superb.A couple of days with this calculator and most people cannot go back to their old 'Algebraic Operating System' calculators, with its cumbersome parenthesis, without making a mistake.
There is not enough space here to praise this calculator to the extent that it deserves.Over the years with all the students and professionals I've had contact with, I know of no one who has ever regretted purchasing this calculator except for the fact that they realized that they waisted money on purchasing their AOS calculators.

1-0 out of 5 stars They show you this one, and sell you a different one
I have ordered this calculator and then the place sends an email and it is changed to a 48gII instead of this one.Please look into this before you buy.

5-0 out of 5 stars HP and RPN Entry
Sorry if this is a little off the topic, but I guess you could say HP sent me here.....
I own a somewhaz tired HP32SII...ands wanting to replace it, naturally, I looked at HP first as I did not want, nor have I ever needed an "Equals" key:-)

What i found amazed me...not only is my 32SII worth about 400.00 dollars now, there are no more to be had...suddenly it doesn't look too tired!I continued to look for HP's RPN offerings, and found, other than the 48, they don't have any RPN Calculators anymore.I was told that they have something under development,due out in late Fall or early Winter.They did not say it was RPN, nor did they quote a "Ball Park" price, so I can't wait!

Has HP lost its collective mind?Is anyone in HP product development or Sales following this discussion?I hope so.

By the way, I paid around 45.00 dollars for my came with a great soft cover manual, about 160 pages, and is the best calculator I ever owned.It replaced my 70's era HP33E, which I still have.....Wonder what that is worth?

Thanks for allowing me to vent!

5-0 out of 5 stars PE = Paranoid Extremist
This is without a doubt, the best calculator ever made for engineering calculations and tasks.Unlike a laptop, it never runs out of battery power in the middle of a design, can be used easily on a plane, can even be used in techincal customer meetings or on the shop floor to check things out that need checking.In an age of spreadsheets and complex analyis programs, it is often forgotten how useful a competent engineering calculator can be to a practicing engineer.It is also invaluable to students of engineering for assignments and exams.Speaking of which, the MN (and soon NCEES) policy has changed so that this calculator is no longer eligible for use on the PE or FE exams.This is due to its ability to transfer data to others, and that one can type text into it.Using the time functions of the calculator, and some personal time trials on the practice exams, I estimated that it would take the average test taker around 1 week to type in even a portion of the test with the limited alpha numeric capabilities of the keyboard, and then transmit it through infa-red to a waiting accomplice 3-4 ft away (given best transmition speed).You would almost certainly be spotted during this activity, and forced into some form of slave labor camp or fast food restaurant. As I am sure most of you considering purchasing this calculator are indeed planning this type of criminal intent, I must warn you that you better think twice because they are on to you.However, those rare, honest engineering and technical types with a minor amount of integrity that somehow leaked into their character could reward themselves (after passing the test using a slide rule, an abacus and some rocks) with a fine tool such as this calculator.They are getting harder and harder to find, so I would buy one while it is available. (The alternatives I have found so far for my upcoming test are kind of like trading a Land Rover for a skateboard).The add-on cartridge with the additional 670 equations, constants and tables needed for the PE exam is pretty good too but may soon require a special permit to own. ... Read more

14. Texas Instruments TI-92 Plus Graphing Calculator
by Texas Instruments
list price: $250.00
(price subject to change: see help)
Asin: B00000JBO3
Catlog: CE
Manufacturer: Texas Instruments
Sales Rank: 18289
Average Customer Review: 4.0 out of 5 stars
US | Canada | United Kingdom | Germany | France | Japan Product Description

With more power than most of us had in our PCs less than 20 years ago, the TI-92 Plus graphing calculator is the machine of choice for students and engineers both at the desk and on the go. It comes with over 500 KB of memory and software for working through algebra and other mathematic problems quickly and easily.

With the TI Graph Link accessory (not included), you can connect to computers and even download software upgrades. Solve linear and nonlinear equations, use the Pretty Print feature to see equations in textbook format, and work with 3-D surface graphs in real time. The QWERTY keyboard is rugged and easy to use, the 128 x 240 screen is easy on the eyes, and the calculator comes with a durable shell to protect its face when you're traveling or in the field. Additional accessories can turn the TI-92 into a mobile data-collection station, but it's just as useful at home.

Students beware: Some professors and teachers discourage, or even ban the use of calculators like the TI-92 in their classes, so make sure it's OK before you buy. Once you're set, the manual is clear and straightforward--you'll be programming in no time. Ultrageeks will love the assembly-language option, but the rest of us can get by just fine with the regular interface. The old timers might still cling to their slide rules, but anyone who needs a calculator for school or work can see why the Texas Instruments TI-92 is so popular: Its versatility, power, and portability give you the number-crunching power of a computer no matter where you are. --Rob Lightner


  • Powerful mathematics software
  • Easily upgradable
  • Handles advanced math well
  • Easy to read and use


  • Large size
  • Relatively high cost
  • May not be permitted for some classes or standardized tests
... Read more


  • QWERTY keyboard and large display; real-time rotation of 3-D surfaces
  • Electronically upgradable using flash technology
  • Input/output port and cable; also supports optional TI-GRAPH LINK
  • Over 500 KB memory for storing functions, programs, and data
  • Pretty Print technology displays mathematical expressions as they appear in textbooks

Reviews (35)

1-0 out of 5 stars NEEDS HIGH CONTRAST DISPLAY!!!
I'm sure the capabilities are wonderful. That's why I bought it. But, it was so difficult to use - because I couldn't see what was on the low contrast (even with adjustment) display - that it wouldn't have mattered if it had outclassed a Cray. I couldn't program it without getting a headache from eye strain.If it had a decent display, it would be great. Without reasonable input and output display, it is just a piece of junk!

4-0 out of 5 stars Make sure it is a Plus!
This is a great calculator, but because Amazon does not have a category for old ti-92's, people often sell these as PLUS models. The only major differences are things Linear Algebra, upgradable firmware, and extra memory. You will want the extra memory if you write custom programs. Before buying one of these, email the sellerand confirm it is a plus model, unless you dont care. Enjoy!

Art Ketcham

5-0 out of 5 stars The Ultimate Calculator
Reasons why the TI 92 Plus is the ultimate calculator,

1) Unique Qwerty keyboard: Immensely useful.
2) Largest screen on a calculator.
3) Very powerful and sophisticated Computer Algebra System.
4) Ability to add programs and features.
5) Makes Casio/Sharp look pathetic.
6) Completely blows the competition away.
7) Capable of solving just about every mathematical problem
known to exist.
8) Banned by exam boards the world over because of its

5-0 out of 5 stars Magnificent!!!!!!!!!
If you are a college student, or anyone who deals with math, I highly recommend that you purchase this calculator.It is an excellent tool for performing many types of calculations both in algebra and, seemingly, in calculus, although I have only used it for algebra so far.Unlike other, disappointing graphing calculators, this one permits you to use undefined variables (i.e., 'x' stands for nothing except 'x' unless you want it to, which is immensely helpful in performing algebraic calculations.) The QWERTY keypad also makes entering expressions a pleasure, rather than a chore; this is more than an academic point when you have a test with a time-limit, and hitting an 'alpha' key before typing every variable depicted with a letter (a,b,x,y, etc.) can use up precious time and maybe ensure that you don't get all the problems done.There are too many easy-to-use and incredibly convenient features in this calc to list here; but it truly is worth the hefty price tag.My only gripes are that the manual is sometimes a bit obscure (though it's easy to comprehend compared to most graphing calc manuals) and that the calc has no nthroot function that I can find, that is, to find the cube root of a number you have to enter it as x^1/3.These are very minor points, though, in a splendid product.

5-0 out of 5 stars Works for me
Exactly what I said: works for me.Go for this rather than the plain ol' TI-92; this has some features definitely worth the extra cash. ... Read more

15. HP 48GII Graphic Calculator (F2226A)
by Hewlett Packard
list price: $129.99
our price: $99.74
(price subject to change: see help)
Asin: B0000DK65Z
Catlog: CE
Manufacturer: Hewlett Packard
Sales Rank: 13341
Average Customer Review: 3.5 out of 5 stars
US | Canada | United Kingdom | Germany | France | Japan

Product Description

HEWLETT-PACKARD (F2226A) 48GII Programmable Graphing Calculator, 131x64 pixels,128KB,RS232 Port, IRdA ... Read more


  • RPN, algebraic, and textbook data entry modes
  • Serial and IrDA ports
  • Makes 3D graphs, 2D and 3D plots
  • Over 2,300 built-in functions
  • 128 K memory, 80.7 K available for programming and data storage

Reviews (6)

1-0 out of 5 stars why not get a HP49g+? Look at the price!
at the time of writing the HP49g+ is available on
amazon at $77.99. Since the 48GII is a 49g+ with
features removed - why not get a 49g+ ?

3-0 out of 5 stars Hold on to your 48GXs
I had high hopes of this calculator being a "real" 48G, maybe with a faster processor running an EMU, but the original case/key design and ROM.

My trusty HP48GX no longer functions properly, the 3, 6, and 9 keys fail to register when pressed.

Bill Hewlett and Dave Packard would join me in my sadness and disappointment at the lack of innovation at HP, and the pathetic replacements offered to the fine 48GX, the lowly, rubber keyed, algebraic entry, plastic faced, 49G and 48GII (both of which I have tried and rejected).

Upon inquiry to HP customer support about the possibility of getting a 48GX repaired, it became apparent that the cheap printers they make, Carly's merger with Compaq, and Hewlett Jr.'s denouncement of the company's current direction are indicative of the level of service and quality of customer support technicians hired by HP, [...]
While searching for a replacement for my 48GX, I encountered a strange phenomenon, used HP48GXs are selling for twice what the new flagship HP calculator costs, and as much as $400-$900 for the few unused 48GXs still around.This is a testament to the failure of HP to continue to provide innovative products, and to the brilliance of the engineers and programmers of the original 48GX at the now defunct Corvallis research facility.

How can a nearly 15 year old technology product still remain the most desirable and sought after in it's class?Only through initial brilliance coupled with the failure of executive management to develop and support the innovation required to improve such a product rather than trying to replace it with a lesser machine.What right-minded consumer would purchase a 49 to replace a 48?

Alas, we have witnessed the demise of the only truly innovative producer of engineering calculators.What does the slogan "HP Invent" mean today?

The talent behind the last several 48G ROMs, Jean-Yves Avenard and Gerald Squelart have given me renewed faith in the future of calculators. After being fired by the new HP, they have taken it upon their selves to create the finest calculator in the world, the Qonos, and I eagerly await it's release. [...]

In the meantime, I am about to embark upon an all-or-nothing attempt to service my own HP, a process which involves a drill press, razor blades, and surgical precision in hopes of extending it's life once again.

Good luck, and protect your HP from cheap batteries and wrong-doers at all costs.

5-0 out of 5 stars Yardstick for Calculators
I must admit that I am loyal to HP calculators! I bought the HP35 in the early 70's when I was a graduate student at Washington University. I currently collect HP calculators.

When I bought the HP 48gII about a month ago I encounted the much talked about keyboard problem. I did what comes naturally. I called customer service. A very friendly representative took my name, address, and the model and serial number of the problem calculator. In about 30 seconds I was informed that a problem free calculator would be on the the way in 3 to 5 business days! I was also given a case number so that I could keep tabs on the progress of the shipment of the replacement. Note that I did not ask for a replacement! The company apparently is on top of the problem and know exactly which calculators need replacement. I asked about instructions for returning the problemcalculator and was told to wait for further instruction from HP. If I do not hear from HP in 30 days, I may dispose of the problem calculator as I see fit. What else could one hope for?

In four business days I received my new HP48gII with three 3AAA cells and two memory cells. The calculator only reguires one memory cell. I immediately checked out the calculator. My problem calculator would ocassionally not respond to the pressing of the up/down and left/right keys. At times others would not respond. With the new calculator I have not experienced any problems.

Go on. Stop listening to the foolishness. Get the best calculator out there. Get the HP48gII!

5-0 out of 5 stars H(P)ope Springs Eternal
Hughey-Pack is baaack!(Okay, tone it down a bit.)No, I really like the new 48gII, although I can't figure why they chose to ID it in the 48 series, since it clearly is a derated 49g+, itself a nice update of the original 49g. I guess 49g- didn't sound too upbeat.And why the serial port when the 49g+ has USB? My laptop doesn't have serial, so I'll have to front thirty for a USB serial converter anyhow. So, in retro, I should have sprung the extra forty dollars for a 49g+, and I've answered my own question. But this clearly brings HP back in line with the TI89. I bought an 89 last spring at Wallyworld for sixty dollars unopened (I guess they were clearing them out for the Titaniums: even so, my fellow engineers called me "traitor", but, hey, sixty!) I was impressed by the Derive CAS and the overall physical quality. Compared with my 49g, it symbolically integrated ordinary expressions quite fast. The 48gII puts HP back in this league, with the (I'm guessing) Erable CAS and 48 MHz CPU.TI quality has improved markedly in the last few years (it had a long way to go) and HP's has slipped some, but the HP48gII seems solid, although it just doesn't have the heft and feel of my fourteen year old 48SX (which still works perfectly with Sparcom Calculus card and all.)No keyboard problems so far, but then no display problems with my TI89 so far either , just waiting for the shoe to drop.

Products like this are what keep HP a quasi-religion for most engineers: my original HP35 , thirty two years old, still works sans battery pack, although watching it canoodle for a full second to extract the sine of PI/6 is amusing, we've come a long way. I always thought HP should have marketed a version of the HP95 palmtop with MathCad or TK Solver in ROM forscientific/engineering folks.And Carly should take a look at the Qonos on, and maybe goose the ACO: tech types would line up like Matrix first-nighters, four hundred in hand, for something like this with the HP sticker.

3-0 out of 5 stars Hope they've fixed the keyboard (updated Oct 04)
I bought this calculator a few months ago.Used to use a 42s, as well as 32 versions.I haven't had any trouble adapting to the new enter-key location, and after spending some time studying this more complicated computing device, I sort of like many of the features.However, the keyboard on mine is unacceptable.As others have commented (both here and on the page for the 49g+), the keys will sometimes miss the keystroke.I find this totally unacceptable, and I, like others lament the decline of quality in HP (at least in the calculator arena).But, I'm hooked on RPN and TI doesn't have it.I plan to try to return my 48gii to HP and see if they have actually fixed the problem (some reviews of the 49+ look hopeful in this regard).If you have a newer model and the keyboard works perfectly (which it should), please post here so we can once again get people buying HP calculators!It will do us all good ;-)***OK - I called HP support.They were very nice and sent me a new calculator.The calculator had an earlier serial than the one I already had - so I wasn't hopeful, despite what they told me.Sure enough, it acted about the same.HOWEVER:1)This was a couple of months ago, so it is possible manufacturing has improved in the mean time.2) I have found a good workaround:Turn on the keystroke beep sound.It's not too loud, does not bother me, and most important, it is very obvious now when it misses a keystroke.I don't have to look at the display - which slows down work.Instead, my senses detect the missing beep without even thinking and I then just hit the key again.I strongly recommend this for anyone with an existing calculator with the problem - and am hopeful based on some recent reviews that HP may finally have fixed the issue on the latest ones being produced... ... Read more

16. Sharp EL-506WBBK Scientific Calculator
by Sharp
list price: $14.99
our price: $14.24
(price subject to change: see help)
Asin: B00027RVVW
Catlog: CE
Manufacturer: Sharp
Sales Rank: 1782
Average Customer Review: 5.0 out of 5 stars
US | Canada | United Kingdom | Germany | France | Japan

Product Description

Sharp Electronics (EL506WBBK) Sharp Electronics EL-509VB is a scientific calculator with 2 display l ... Read more


  • Large 12-digit, 2-line display, multi-line playback
  • Convenient solar and battery power supplies
  • Advanced Direct Algebraic Logic Series scientific calculator
  • Ideal for high school students, college students, and professionals
  • 440 functions including differential and integral calculus

Reviews (3)

5-0 out of 5 stars This is it! Look no further !!!
I just got mine 506wbbk and with in minutes I loved it.
I decided to get this to replace my 22 years old trusy & great EL-5103 which cost me $50 in 1983 (how much is it in 2005 money? , $100 ?). This new thing is 4 times beter and for the price you can't match. A better manual would be nicer but you'll manage.

5-0 out of 5 stars Sharp Minds?
What? No multi-colored decorative templates? No MediƦval keypad? No invisible decimal point? No known bugs? What were Sharp Minds thinking?
This thing isn't programmable. The complex number and matrix functions are limited compared to those on most graphing calculators, but the general selection of functions and solvers is useful and extremely easy to use. It's a terrific bargain at fifteen dollars.
NB: If you need one of these beauties in a hurry, your college bookstore may well have it in stock now.

5-0 out of 5 stars Sharp finally did it!
Sharp has created the first serious mathematical tool for under $30. Note this is a greatly expanded version of the EL-506VB with a $5 price break thrown in for good measure.

Here are the things it CAN'T do:
1) Graphing
2) Programming (you can program formulas, but no conditional branching)
3) Symbolic Computer Algebra
4) Chi Squared distribution (it will do normal probabilities)
5) Huge matrices (you're limited to four 4x4 matrices)

Guess what? All those things are best done on a computer anyway. You can get a free copy of MuPad (for noncommercial use), and have far better functionality than any calculator at any price, plus get your output in a form easily shared over the internet. What Sharp has done with this calculator, is give us the ultimate tool to keep NEXT to your computer, or take with you for "outside the box" mathematical doodling.

440 functions (it says 469 on the box -- I'm not counting!) and all easily accessible without menus within menus within menus, ala those cludgy graphing calculators. Oh, there are a few modes and such, but believe me, everything is within a few logical keystrokes. You can spend 30 minutes with the manual, and then THROW IT AWAY.

They did so many little things right. For example, when you do need a menu, you can scroll through all the options with the cursor keys, OR, if you already know your way around, you can just hit one digit that corresponds to your function. And insert mode is the default mode, as God intended it to be. THANK YOU SHARP! The principle is simple: the default should be to preserve information, not destroy it. The user should have to do something deliberately, to overwrite data.

And they took this design out of the world of "toy" and into the realm of "tool" by keeping the calculation history intact through the on/off cycle. If the calculator shuts off in the middle of some earth shaking computation, you just flip it back on again and keep going where you left off.

The keys actually have a little tactile feedback on this calculator. Not like an hp-48, of course, or even a TI-89, but better than most under $30 calculators. And this is just the koolest LOOKING little thing to ever dazzle your eyeballs.

Here's a partial list of function types:
- Arithmetic
- Numeric differentiation/integration
- Four types of random numbers
- 8 memories plus last Answer memory
- 4 formula memories
- Fraction calculations
- Binary, Pental, Octal, Decimal and Hexadecimal base conversions
- Decimal to sexagesimal (time) conversions
- 52 physical constants
- 42 metric conversion
- Engineering notation
- Solve for x (Newton's method)
- Single variable statistics, with normal probabilities
- Linear, quadratic, exponential, logarithmic, power and inverse regressions
- Simultaneous linear equations
- Quadratic and cubic equation solvers
- Complex number calculations
- Matrices (four 4x4)
- Lists (up to four with 16 elements and various operations)

No doubt about it, this is a ground breaking, price shattering tool. I do have one little nit, though. I wish numbers would appear in the top line with the rest of the formula as you enter them. Putting them on the bottom line does two things: 1) It erases the results of the previous calculation (you might want to copy parts of it into the current formula while "doodling"). 2) It removes the numbers from all editing functions, except for last digit DEL. Eg. You can't use the arrow keys to go back and insert a missed digit without some unnecessary tomfoolery.

Oh, and it would be nice to have more memory, so you could input slightly larger matrices (10x10 would be nice), and keep a longer calculation history (maybe keep results as well as formulas?). But all in all, hats off to Sharp. Right now, this is the ONLY serious calculator under $30. ... Read more

17. Casio ClassPad 300 Touch-Screen Graphing Scientific Calculator
by Casio Inc.
list price: $179.95
our price: $142.49
(price subject to change: see help)
Asin: B0002AUVP2
Catlog: CE
Manufacturer: Casio Inc.
Sales Rank: 17917
Average Customer Review: 4.0 out of 5 stars
US | Canada | United Kingdom | Germany | France | Japan

Product Description

MODEL- CLASSPAD300VENDOR- Casio CalculatorsFEATURES- ClassPad300 Pen-based Graphing CalculatorThe ClassPad 300 comes packed with an impressive collection ofapplications that support self-study, like 3D Graphing, Geometry,eActivity and lots more. A big 160x240 pixel LCD touch screenenables easy and intuitive stylus-based operation. Uses an intuitive pull-down menu interface that simplifies evencomplex operations. Solutions, expressions and other items can beselected with the tap of the stylus. Supports drag and drop, copy and paste and other pen-based operations that help minimize keyoperations. Versatile graphing tools for 3D graphing and drawing of geometric figures, which provides plenty of support for the mathstudies of students.Presentation application provides the teachers with tools forcreating materials to promote student understanding of mathematicalconcepts and problem solving processes. eActivity applicationallows the creation of eActivities that can include figures,expressions and explanations. * Pen Touch operation-Computer-like intuitive operations for menuselection, button operations, etc. Drag & Drop supports dragging of aninput expression to a graph screen for instant graphing. * CAS (Computer Algebra Systems) - Natural display input enables input of fractions, differentials, integrals, Sum calculations, lim calculations, and other expressions in the same format as that used in mathematics texts. - Function Conversion function - Algebra assistant* eActivity Application - Creation - Buttons for expression processing, text statements and eActivityfunction recall. - Each teacher can create activities on his or her own calculator. - Button for recalling user-created programs - Application & Classroom - ... Read more


  • 160-by-120-pixel display with iconic menu interface
  • Lets you enter equations using traditional textbook format
  • Pen Touch operation, including drag-and-drop
  • 3-D graphing trace, zoom, rotate functions
  • Expression processing, text statements, and eActivity functions

Reviews (7)

This calculator is amazing! It does everything the Texas Instruments ones do and even much better! It's very easy to use. Drag and drop. I think this should be the standard for the next generation calculators. The battery lasts forever! I don't see any problem with the LCD screen at all. It's CRYSTAL clear even under below average light conditions. Even my younger brother in elementary school has no problems using it at all! I bought one for myself and another for my fiance!

1-0 out of 5 stars Yes, It is true. The display is awful.
I totally agree with the previous reviewer. I removed the protective cover (as suggested by another reviewer), it did not help that much. The only way I can see the screen is when I place the calculator under a desktop lamp.
I wasted $150. What a shame.

1-0 out of 5 stars Unusable LCD Display
The LCD diplay on these units (I have purchased two, now, with the identical problem) is so bad that the units are essentially unusable. The LCD display contrast is very, very low. (it is hard to believe that the contrast is even 10:1? (a good LCD computer monitor is about 500:1))

Even under the best lighting conditions, carefully holding the instrument just so, etc. the units are hardly even readable. I have 1) replaced the batteries (both the batteries that came with the units and these replacement batteries tested fully charged) 2) carefully adjusted the contrast (being unusable is the BEST that I could get, any other contrast is hopelelly worse) 3) reset the unit, etc.

After the problem with the first unit, I looked at the reviews and the reviews did not mention this problem. I therefore, reasonably, assumed that this first unit was defective and so I arranged to exchange it for another one. Unfortunately, the second unit's display is equally abominable so I assume that this very unfortunate defect is intrinsic to the product.

5-0 out of 5 stars Awesome
Of all the calculators I've ever used, the moment i picked up the classpad I knew it was different from all the rest.With quite a few more functions than standard graphing calculators on the market, and helpful programs such as the equation solver, the Classpad, with its state-of-the-art technology and easy to use touchpad screen will blow anyone who uses it away.

5-0 out of 5 stars A Quantum Leap in Calculator Technology
Would you use your computer without a mouse?Would you use a PDA without a pen?If so - buy a traditional graphing calculator.If not, buy ClassPad.

I have tried to use the CAS features of high end calculators: TI 89, Casio FX 2.0 to solve real algebra problems in my work as a software engineer, but was always frustrated by the difficulty of inputting expressions.The ClassPad solves that, by its natural math input (think Word's Equation Editor).

The only small fly in the ointment is the screen display - because of the need to have good battery life (and for someone used to PDA's perpetually running out of juice, ClassPad is excellent in this regard) Casio have not back lit the display, and in low lighting conditions, it can be a little dim.However, removing the protective cover helped enormously, and I'd risk a little eyestrain for the joy of using this little beauty. ... Read more

18. HP HP32SII Scientific Calculator
by Hewlett Packard
list price: $64.99
(price subject to change: see help)
Asin: B00000JBMH
Catlog: CE
Manufacturer: Hewlett Packard
Sales Rank: 27618
Average Customer Review: 5.0 out of 5 stars
US | Canada | United Kingdom | Germany | France | Japan Product Description

Calling all engineers--Hewlett-Packard's HP32SII Scientific Calculator is the calculator for you.With 384 bytes of memory, 26 variable keys, more than 100 built-in scientific and mathematical functions, and RPN data entry, you'll find everything you need for efficient and fast calculating in this compact unit.

We like Hewlett-Packard's HP Solve feature, which lets you solve for any variable without having to rewrite your equation. And, like most scientific calculators, the HP32SII can perform decimal/hour/minute/second conversions, polar/rectangular/angle conversions, unit conversions, base conversions, and arithmetic.

The LCD can display one line with 12 characters and is bright enough for most environments. The calculator runs on three LR44 batteries, which come with the unit. ... Read more


  • Data entry using reverse Polish notation
  • More than 100 built-in math and science functions
  • Powerful built-in program library
  • Essential trig and math functions
  • Base conversions and arithmetic

Reviews (30)

4-0 out of 5 stars An old calculator.
Well, I got a HP-33S wich is HP-32SII sucessor for just U$49,99. It is much more powerfull than 32SII with 31kB of memory! Of course 33S does not have the same quality of old ones and does not have the same good finishing but is better. Things I don't like in 33S include the very limited complex algebra which comes from 32SII! There are no matrix algebra as well! I know some people love this calculator, like 15C, but there are better new ones. One I don't say the same is the also old 42S. There are people buing it for $299. My brother has one and I would like to have one too.

1-0 out of 5 stars Perfect for antiques collection
I recently sold my HP 32SII at decent price on Ebay. The people who are recommending the calculator are mostly living in a different world and not computer literate. Or that they are sentimental of their calculator like many weird people who are obsessed with different things. If you are interested in a piece of antique, go ahead. If you are real professional, short on time, and tech savvy then HP 32SII will disappoint you. HP has come up with 33S and there is no reason to buy this one for three times the price of new 33S.

5-0 out of 5 stars My second one...
I left my first one, bought new, in a plane! Then got a used one several yrs ago for $60; I am tempted to sell it for $300 but HP makes nothing like it anymore. A sad day indeed for HP. My back ups are 48G's that I purchased used, and will be getting a 33s but this one is the best HP I have ever owned. RPN rules!!!

5-0 out of 5 stars Geeks Unite
The HP 32SII is the best scientific and engineering calculator EVER made.It's that simple!Simplicity in design, elegance in form, excellence in function, and as durable and reliable under fire as a Russian rifle at Stalingrad. It was an ever present reminder, right in the palm of our hands, what engineers should strive for...and now its gone.

Would Levis discontinue, 501's?Volkswagon learned the hard way when they abandoned the very thing that what made them great.What middle manager at HP is responsible for this blunder.

Geeks Unite!We are naturally a silent bunch, but this is getting personal, its time to speak out.They didn't discontinue the MBA's 12C, another timeless engineering masterpiece.No No.HP used to be a company of engineers, by engineers, for engineers.

Send Carly a letter, before they dismantle the factories. They are messing with what made them great. In stark cotradiction to Moores Law, the HP32SII is every bit as useful today as the day it was introduced, and will be until laptops cost $60 bucks.I'll get a spare at [way more money].Hell, I can even go surfing with it.

5-0 out of 5 stars Sniff - I'll miss it.
This is the best calculator I have ever used. It was perfect, small and elegant. RPN made calulations quick, and the 4 stacks made multiple operations or complex equations easy to solve. It had everything I needed, if not graphing which i rarely do anyway save with a computer. I wish It hadn't been discontinued. I've used these since 1993, and would still have one now, if it hadn't been stolen. ... Read more

19. Texas Instruments BA35 Calculator
by Texas Instruments
list price: $28.95
our price: $20.89
(price subject to change: see help)
Asin: B00004UFMI
Catlog: CE
Manufacturer: Texas Instruments
Sales Rank: 3396
Average Customer Review: 3.5 out of 5 stars
US | Canada | United Kingdom | Germany | France | Japan

Product Description

Designed specifically to handle time-value-of-money calculations such as annuities, mortgages, leases, savings, and generates amortization schedules. Accommodates annual percentage rate (APR), effective rate (EFF) interest, one-variable statistics. Math f ... Read more


  • 1-year warranty
  • Preprogrammed financial and accounting functions
  • Interest conversions from annual percentage rate to effective rate
  • Solar powered--no batteries needed
  • Protective slide case

Reviews (5)

4-0 out of 5 stars Great for money, great longevity
I bought this calculator for my first finance class 12 years ago.While it does have some limitations such as not being able to work with uneven cash flows, it is still the finance calculator I grab when I want to figure something out in a hurry (I also own an HP 19BII and TI BAII Plus).The BAII Plus does do much more for only a few more dollars, but it is not as quick for simple finance calculations.Further, the BA 35 is still in perfect shape after much use, while the BAII Plus' display has begun malfunctioning and some of the digits do not show up at all now.The BA 35 is a great calculator, but ultimately, I would suggest the HP 17BII (which I have also used extensively, but do not own) if money is not a consideration.

3-0 out of 5 stars Underrated but Outdated
The Texas Instraments BA-35 is a calculator who's time has passed. It does allow the practiced user to ammoritize loans or value annuities with amazing speed, but today there are better options out there.

Deficiencies: 1. Lack of algebraic logic, it just does the calculations in the order you enter them. 2. inconvenient memory- it takes several keystrokes to store or retreive from the memory (but you can use the 5 financial registers as memories). 3. wears out too easily- I have had the displays on 3-4 of these calculators go whacky on me. This is not a problem I have had with other TI models.

There are lots of cool tricks you can do with this calculator, but even the Society of Actuaries has moved on to allow more capable models.

5-0 out of 5 stars Virtually everyone should own a business calculator.
Everyone who borrows money to finance a car or a house should own a business calculator. It can quickly compute in advance how much your monthly payments will be once you insert the amount borrowed, the yearly interest rate, and the number of payments. Or,if you prefer, you can insert the amount of the monthly payment you can afford and calculate the amount you can afford to borrow or the number of payments over which you will need to spread out the loan. You will also be able to protect yourself against accidental or deliberate errors made by the lender. For the purposes outlined above, the Texas Instruments BA35 is a very good buy at a bargain price. If you need a more sophisticated business calculator I recommend the Texas Instruments BA II Plus.

2-0 out of 5 stars Underpowered and overpriced
Anyone who purchases a BA-35, uses it and then tries out the TI BA II Plus for about 12 bucks more is going to suffer a bad case of buyer's remorse.The 35 is woefully underpowered in financial calculation capability compared to the next higher level of financial calculators.The reason I have one is that is is one of the required calculators for the actuarial exams (for reasons I have yet to figure out).

My overall recommendation is -- if you want a financial calculator that has actual capability, spring for either the HP12c or the TI BA II Plus.

4-0 out of 5 stars A good, basic business calculator
I have a TI BA-35 that I purchased about 15 years ago and it still works. It has just the basic statistics functions (found on almost all scientificcalculators) and compund interest/ time-of-money calculations, but that'sall a small business generally needs.

It came with a great book, teachingelementary foundations of statistics and finance.I do not know if thepresent version comes with this book, but I would hope so.I never had astatisitics course in college, but with this aid can do some meaningfulanalysis. ... Read more

20. Texas Instruments TI-30XIIB Scientific Calculator
by Texas Instruments

our price: $15.19
(price subject to change: see help)
Asin: B00008VF6N
Catlog: CE
Manufacturer: Texas Instruments
Sales Rank: 11057
Average Customer Review: 2.5 out of 5 stars
US | Canada | United Kingdom | Germany | France | Japan


  • Long-lasting battery; 1-year warranty
  • 11-digit entry line, 10-digit answer, 2-digit exponent
  • Trigonometric calculations including hyperbolic in DEG, RAD, or GRAD
  • Scrollable screen, editable in 4 directions
  • Processes 2-variable statistics

Reviews (2)

1-0 out of 5 stars Designers were on Crack
This is a great calculator, until you use it. Sure it has a lot of things, but... there are other calculators that are actually cheaper that don't have the stupid design/program errors this one has. For example:

1. To find square root of a number, you have to hit square root first. So, when dealing with large numbers, you'd have to delete the number you are working with, type 2nd and square root, and then retype a great big long tedious number. With other cheaper off-brand calculators you can just simply hit the root button and it will compute what is already there.
2. Most calulators at this level have it's own button for Factorials. On this calculator that simple process becomes a 3 button task.
3. Lastly, (from what I've encountered,)and the worst crime of all. There is no button for simple exponent computation. If you want to find out 5 to the 25th power, you're gonna have to type 5x5x5x5x5x5x5x5x5x5x5x5x5x5x5x5x5x5x5x5x5 you get my point.

Save yourself 10 bucks and buy a different calculator that has these basic options.

4-0 out of 5 stars Good for college stats class
I used this calculator of 2 college math classes: Beginning Algebra and Statistics.It is a good calculator.It did everything that I needed it to do.

The only thing that I wished it has would be a solar power strip because I'm always worried that I left it on and now the battery is dead, especially right before a test. ... Read more

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