Low Price Sharp EL-506RB Scientific Calculator

This calculator is the BEST for any type of math student from middle school all the way up to college. The best feature of this calculator is its ability to perform matrix calculations and solve systems of equations. It has been really helpful for me when taking math tests as well as in math competitions. I strongly recommend this calculator for any high school sutdent taking higher math, such as Algebra 2, Precalculus, Trig, Calculus, or Statistics. If you're in math club and participate in math competitions, you'd better get this calculator fast!!Get more detail about Sharp EL-506RB Scientific Calculator.

Save HP HP48G PLUS Graphic Calculator

As an engineer of 30+ years, and now an engineering professor, I truly believe the HP 48G series of calculators is one of the best calculators ever developed....even if it is not the most intuitive. I remember starting college with a TI calculator (an SR-50). At some point, someone turned me onto the HP calculators of the day. After using one for a short period, I knew this was the way calculators were suppose to work. Very fast, very logical, very easy to use!

The major reason most persons do not like the HP is due to the RPN (Reverse Polish Notation) logic and RPL (Reverse Polish Lisp) language employed by the HP; generally because they do not understand it. RPN logic is how math is done, even pencil on paper. It is extremely logical. Even algebraic entry calculators, when not set to textbook entry, employ RPN logic for functions (ie: logs, trig functions, etc.). RPN logic forces the user to start from inside and equation and work outward. Of course, this is exactly how one solves anything pencil on paper! As a simple example, the sum of 5 and 8 in algebraic logic AND in textbook entry is 5 + 5 = ??
In RPN, there is no equal key. Instead, there is an ENTER key. So one would press 5 [ENTER] 5 + To the unitiated, this appears confusing on the surface. However, when one understands how the mind processes information, and when one truly understands how mathematics is performed, one realizes this is exactly how one handles math without the calculator. This is why there are no parenthesis on an RPN calculator. They're unneccessary. The advantage of RPN logic becomes readily apparent when handling very long/complex algebraic expressions (ie: Bernoulli, Principal Stress Equations, Certain Thermodynamic Expressions, etc.).

Although I have no problem with algebraic entry logic, Textbook entry is something to be despised. I truly believe this entry method has done more to degrade the mathematical abilities of our students than anything else! Textbook entry is exactly what it sounds like. You enter the equation as it appears in the textbook, then press equals (or exc). Although this sounds like a good thing, I can tell you that the vast majority of mathematical errors made by my students are made due to the lack of understanding of basic mathematical heirarchy. This is lack of understanding is propogated by the textbook entry format. Even students who have calculators with algebraic logic generally make fewer mathematical errors than those using textbook entry! It is also an extremely slow method. When lecturing on a given topic, and solving long algebraic expressions, I (and students using HP's) solve problems far more quickly than those with algebraic and textbook entry calculators. This time factor is rather substantial. Generally, those with textbook entry calculators are left so far behind those using even algebraic only entry, they stop participating and allow others to perform the calculations!

I have three high-end Casio's, every TI from the 83 through th 89, and most HPs from the 25 through the 50. I own so many so I can help my students. I hate to say it, but I never have questions from students who own HP or Casio calcualtors, only those that own TI's. Never thought about that before now. I wonder why?

I have also done extensive programming with the TI's, somewhat less extensive with the HP's, and minimal programming with the Casio's. Most of my programming is for use with data loggers. The HP is somewhat more difficult to learn overall, but the learning curve is not that much greater than the TI or Casio. However, the HP pays dividends in the end, especially in terms of speed of calculation and in terms of available professional software. I have always thought the HP SOMEWHAT more powerful and with a much more close-knit support group than the TI, although I suppose that could be debated. The Casio is easily the most intuitive of the three and I believe far superior to the TI in most areas. Anecdotally, I've had a number of students go the Casio route when purchasing a new calculator and they've all preferred it over the TI. (did you know Casio is the calculator of choice outside of North America?) In my opinion, the TI falls in between the HP and Casio. All three are very fine calculators. All three will do the job. But the HP is unique in that it actually improves ones understanding of mathematical concepts and heirarchy to the RPN logic.

By the way, I have a number of friends who like the HP, but use the TI or the Casio. However, they seldom use it in textbook entry (they also deem it illogical). However, they usually use it becasue the department has selected TI's. This is especially true in K-12. But this is generally due to a difference in the business models of Texas Instruments vs. Hewlett Packard. Unfortunately, HP caters to the professional market, not the educational market.

In the end, the HP-48/49/50 series of calculators are GREAT calculators. I tend to prefer the high end 49/50's over the 48 series due to their use of SD cards, thus the ability to store high quantities of data. However, the 48G and 48G+ can still be found at a reasonable cost, thus comes highly recommended.Get more detail about HP HP48G PLUS Graphic Calculator.

Discount Calculated Industries 4065-SRL Construction Master Pro Advanced Construction Math Calculator with Swanson Torpedo Level

I got an excellent deal on this calculator. I would almost think they made a mistake. Calculated Industries makes excellent products. I think I had a No. IV which got lost or stolen. I've had a Construction Master V for probably more than 6 years and it still works perfectly. I actually still use the No. V most of the time on the job. I'm a Plumber and Steamfitter and have found so many ways to use these calculators in my trade. They have many excellent features. It has what they call a paperless tape that stores the last 20 calculations so you can check your work. I also find it useful as just a normal calculator. The conversions are great. If you want to learn more about it you can go to their website. I actually bought 2 for myself and one for a friend. The torpedo level that You get with it actually goes for $10 the last time I checked on Amazon. You wouldn't believe the price I paid for the ones I purchased and they would probably block it out. I would suggest when you see something you think is price good that you grab it. Amazon.com has a habbit of raising the price 50% overnight.Get more detail about Calculated Industries 4065-SRL Construction Master Pro Advanced Construction Math Calculator with Swanson Torpedo Level.

Cheapest VCTV12 - Victor V12 10-Digit Financial Calculator

I used the HP12C Platinum for about a year. I lost it. Someone recommended the Victor V12. It looks much nicer. The display is huge compared to the HP. The calculator works the same. The wallet is very nice. I can't believe how much better this is than the HP for less price.Get more detail about VCTV12 - Victor V12 10-Digit Financial Calculator.

Cheap Aurora DT210M Dual Power Angled Display 8 Digit Desktop Calculator

The Aurora DT210M is a great calculator because it is easy to use with large keypad, easy to read screen and reliable. My identical old one lasted over 20 years. Never needed a battery or any maintenance. I was thrilled to obtain the exact same model as a replacement for my old and trusty Aurora calculator. Purchased from Amazon.com.Get more detail about Aurora DT210M Dual Power Angled Display 8 Digit Desktop Calculator.

Buying Casio ClassPad 300 Touch-Screen Graphing Scientific Calculator

Over the past year, I've used two different graphing calculators - the TI Nspire and the ClassPad 300. I started with the TI and, while it does a lot and appears to be well designed, the documentation is absolutely horrible and the calculator is also not intuitive. I spent many months trying to learn how to use it and finally gave up. It was at that time that I decided to try the ClassPad and found that I liked it a lot more than the TI. In fact, I'm very sorry I didn't try the ClassPad first.

In comparison to the TI, the ClassPad is far more intuitive, I love the touch screen - especially because it makes entering complex equations much easier than using the key pad, and the learning curve is significantly less than that of the TI (again, I finally gave up on the TI after trying for months to understand it).

Although the ClassPad is a great calculator, I wish that the screen had a backlight and that there was more, a lot more, documentation. I also disliked the small icons that appear on the touch screen and wish that there was some way to identify what each means without having to search for them in the manual.

Overall, this is a far better and more intuitive calculator and would highly recommend this over the TI any day.Get more detail about Casio ClassPad 300 Touch-Screen Graphing Scientific Calculator.

Buy Canon - USA MP49D PRINTING CALCULATOR ( 9491A001AA )

This unit has good touch on the keys, good display and excellent printing for a 10-key. But I work in finance, and need good capability in calculating lots of percentage changes, and for that this model is AWFUL. The Cost, Sell, and Margin keys are somehow screwed up, and you can never get a proper answer, and yes, I have read the manual. I have to resort to a handheld calculator to get a correct result for percent change, such as a stock price appreciation. And that's pretty basic stuff. I would look elsewhere for a 10-key unless all you need is to +, -, x, & ÷.Get more detail about Canon - USA MP49D PRINTING CALCULATOR ( 9491A001AA ).

Purchase tc100

I bought the TC100 and it couldn't recognize fingerprints. The Anviz USA customer service is rude and uninformed. The software doesn't work, either. I bought it direct from Anviz. Buy something else and save yourself the aggravation of having to return this and wondering how much of your money they will try to keep.Get more detail about tc100.

Order TEXTI84PLUSSE CALCULATOR,GRAPHING,SILVER ED.

Got this one for high school after already owning the TI-89. I got this one because it can be used on more tests than the TI-89, but I was spoiled by the TI-89. There are times when I go back to the TI-89 because it can do more kinds of problems.Get more detail about TEXTI84PLUSSE CALCULATOR,GRAPHING,SILVER ED..

Where To Buy Sharp(R) QS-2770A Commercial Use Printing Calculator

Used this calculator and 3 of it's predecessors for about 25 years. Easy to use, durable, quite a good buy. I would have thought that with what I paid for rush delivery charges, it would have arrived a litte quicker, but I purchased through an off shoot of Amazon.Get more detail about Sharp(R) QS-2770A Commercial Use Printing Calculator.

Shop For Casio FX-270W Plus Scientific Calculator

I bought this calculator when I started high school in 1997 and now after 11 years and many drops-on-the-ground later, it continues to work perfectly...I haven't even had to change the batteries yet either! This calculator is easy to use, has robust features, and is super dependable. 5 stars!Get more detail about Casio FX-270W Plus Scientific Calculator.

HP-15C Advanced Programmable Scientific Calculator and Owner's Handbook

So many features and so much power in a truly "pocket" calculator makes this the best scientific calculator ever made. It handles the most common scientific formulas / calculations and then some more, like matrices and complex numbers.

Small enough to fit in your pocket, batteries last forever and the quality of everything in this calculator (LCD resolution / contrast, ergonomy, workmanship, colors, etc) make this a unique piece. Too bad it is not produced anymore.Get more detail about HP-15C Advanced Programmable Scientific Calculator and Owner's Handbook.

Casio SL-200TE Basic Calculator, Eight-Digit LCD Review

Basically all this is ... is a plain old calculator...too big to carry in your purse. I would have sent it back but it wasn't worth paying the return postage.Get more detail about Casio SL-200TE Basic Calculator, Eight-Digit LCD.

HP 9s Scientific Calculator Top Quality

After many years of relying on my HP graphing calculators (48SX), I had to scale down to a one-line calculator for use in one of my exams. HP sets the standard for engineering calculators. Unfortunately, the graphing calculators are a little too powerful for use in certain exams, since you can almost program them to do the work for you. My professor specified "1 line calculator ONLY" for the final exam. It's actually not that easy to find a good scientific calculator that's only 1-line. Most are 2-line, or graphing.

For a 1-line calculator, especially for the price, this one is perfect. It's not as small as I had envisioned, but that's because of all the features/functions they have to accommodate. And if you're used to using a larger HP scientific calculator, you'll find this one fairly easy to get used to (despite the lack of RPN date entry mode, due to 1-line limitation).Get more detail about HP 9s Scientific Calculator.

EL506WBK Scientific Calculator with 469 Advanced Scientific Functions This instant

the one to get, good features, great price, it will handle any math you throw at it (even fractions)
great buyGet more detail about EL506WBK Scientific Calculator with 469 Advanced Scientific Functions.

TI SCientific Calculator Immediately

Needed to return product because bought to many by mistake and seller was very generous and helpful!!! Plus the item was in great condition!!!Get more detail about TI SCientific Calculator.

Sharp EL9600C Graphing Calculator Best Quality

This calculator is a very good one and one that works equivalently in all ways using either direct keystrokes or stylus motions. It is largely no longer available which is a shame, but some of the internal electronics software is clearly getting quite outdated (and a little bit sluggish compared to some other more recent calculators, etc.). It performs really well however, so if you want to try a stylus-based calculator to see if you would like a much more advanced one like the Casio Classpad330, this is a great one to try out.

All the expected standard (as well as several advanced functions) and numerous data plotting options (with split-screen capability including the option of both a table and a plot displayed simultaneously, etc.) and numerous and reliable statistical operations for detailed data analysis, etc. are available on this fine unit. It also comes with a slide-on, standard heavy plastic cover and a very good manual with very clearly explained operations and examples. I recommend it, if you can still find it, without any reservations.Get more detail about Sharp EL9600C Graphing Calculator.

Sharp EL531WBBK (Black) Scientific Calculator Get it now!

THE BUTTONS ON THE CALCULATOR ARE NOT SMALL, THE BRAND BRINGS IT UP ANOTHER NOTCH.Get more detail about Sharp EL531WBBK (Black) Scientific Calculator.

Datexx MouseStation Executive Leather Mouse Pad with Calculator and World Time Clock - 215WTLG Buy Now

I really like the Executive Mouse Pad because it has a clock/calculator. The thing I don't like, is I have to put something on top of the pad to make the wireless mouse work. It will not move the curser without putting paper, etc on top of the mouse which kind of defeats it's purpose. I like the arm rest, and that is why I kept it.

Get more detail about Datexx MouseStation Executive Leather Mouse Pad with Calculator and World Time Clock - 215WTLG.

Plumbing Calc Pro 4094 Professional Plumbing Math Calculator Order Now

Too much to list. Have to purchase it too experience it. Is there any other company out there who can come close to this product? I don't think so. Great tool!!!Get more detail about Plumbing Calc Pro 4094 Professional Plumbing Math Calculator.

Aurora HC520A big 8-digit LCD, solar and battery handheld calculator Decide Now

The product pictured is an approximately credit card sized model #HC502A calculator and the heading originally listed it as such but now the heading has been changed to list the calculator as model #HC520A - a much larger calculator and the one you will receive if you order this one. You will NOT receive the calculator pictured (and still listed as model HC502A in the product description further down the page).

The actual calculators received (1 ordered and 2 replacements) were ALL incorrect models (# HC520A), much larger and NOT pocket sized. In response to my message and then telephone call to Amazon about receiving incorrect models, their solution was to change the model number in the heading to the one NOT pictured and NOT described in the listing as model #HC502A. What you will actually receive is model #HC520A, a LARGE and entirely different calculator. Amazon was made aware of this but chose to change the model number in the heading instead of correcting the problem. Again, you will NOT receive the small calculator pictured and described in this listing.
Get more detail about Aurora HC520A big 8-digit LCD, solar and battery handheld calculator.

Sharp EL-1801C Semi-Desktop 2-Color Printing Calculator Right now

This is a nice all-around calculator. I'm hyper sensitive to the tactile feel of the buttons on a calculator (or keyboard, for that matter). The mush-buttons of most other desktop calculators in this product's price range drive me nuts. When you push on these units the button will wobble (drastically!) from side to side as well as move down. A rough analogy is trying to sit on a large inflated ballon as a kid; you go every which way. As a consequence, my fingers often slip off the keys and I make errors. I have an otherwise great Canon calculator that has this flaw, and I never use it.

The Sharp has computer-keyboard-type keys. Check out the feel on your numeric keypad as you read this: that's how solid the keys feel on the Sharp. Each key has a mechanism that restricts the key motion to vertical (up and down) only, with virtually no side-to-side mush. This is the sole reason I bought this unit, and the reason was to replace the Canon.

The printout is a bit light (for both black and red inks), and may be due to old/dried out print pads on my particular unit. I haven't gotten around (or really needed) to replace them to see if this fixes the problem.

The printer is a bit slow, but practically speaking it's a non-issue. There is a generous keybout buffer to capture strokes, and, frankly, I like it when I get a bit ahead of the machine and it cranks calculations to catch up with me (yeah, I know; it's weird). For the record, I've never lost a number yet.

Only thing keeping it from 5 stars is the light printout (my Canon had a gorgeous solid purple in a beautiful font; the Sharp output is somewhat faded, with a pedestrian font. Again, this may be my particular print rollers, see above). I'm also hyper-sensitized to these things; they might not bother you at all.

Great machine overall. I'd buy another in a heartbeat if this one failed.

- Paul Fredrick
Get more detail about Sharp EL-1801C Semi-Desktop 2-Color Printing Calculator.

Lowest Price HP 39G+ Graphing Calculator

this calculator is kind of confusing. it works but if you are taking a class that needs both radian and percentage, don't get this. it only comes in radian mode. besides that it is ok once you figure it out.Get more detail about HP 39G+ Graphing Calculator.

Low Price Sharp Calculator (EL-501VBBL) (EL-501VBBL)

This is an effective and inexpensive choice for those who just want a scientific calculator that works and no nonsense. The bonus is that it's permitted on all SAT, PSAT and AP tests. SHARP makes great electronics and the price can't be beat, compared to a more expensive TI. Get more detail about Sharp Calculator (EL-501VBBL) (EL-501VBBL).

Save Casio HS-8V Hand-Held Solar Calculator

It's a solar powered calculator that works. Not much else to say. I originally thought it was much bigger, but the dimensions given were "packaged" dimensions. It's maybe an inch bigger than the palm of your hand and fits in your back pocket.Get more detail about Casio HS-8V Hand-Held Solar Calculator.

Discount Texas Inst. BAII Plus Professional Calculator

I find the TI BAII Plus (Professional) to be a valuable tool for anyone in the financial industry. It is very specialized so do not expect to work out your trigonometry problems with it or anything scientific for that matter. Looks good on my desk with its stainless steel outer covering.

It takes some time to learn how to use the various functions though. Need to read the manual before using it. It is a CFA compliant calculator if you are doing the exams.

A very good buy.
Get more detail about Texas Inst. BAII Plus Professional Calculator.

Cheapest Canon MP41DHII 14-Digit GLOview LCD Two-Color Printing Desktop Calculator (Black/Red)

Nice machine/would buy again. No complaints except the extra zero keys are a little hard to get used to.Get more detail about Canon MP41DHII 14-Digit GLOview LCD Two-Color Printing Desktop Calculator (Black/Red).

Cheap CANON LS270H Calculator

I've had one of these for years, use it every week to pay bills. It's the right size, not too big. I just bought several more - one to keep in the kitchen area, one for my niece for schoolwork, and a couple extra for stocking stuffers. Sure, most computers and cell phones have built-in calculators these days but there's no substitute for a hand held when doing certain projects.

Inexpensive, dependable, functional -- what more could you ask for?Get more detail about CANON LS270H Calculator.

Buying 2 Pack Calculated Industries 5022-2 Armadillo Gear Hard Calculator Case - Black and Gray

I don't know how many calculator I dropped and broke LED screen. Thousands and thousands dollars in trash before this products. I love them so much I got everyone in my company as gift. We are loving it.Get more detail about 2 Pack Calculated Industries 5022-2 Armadillo Gear Hard Calculator Case - Black and Gray.

Buy Pocket Size Talking Calculator (Black)

Very satisfied with the talking calculator. It really serves the purpose for use in my checkbook balancing.Get more detail about Pocket Size Talking Calculator (Black).

Purchase Calculated Industries 4105 Construction Master Pro for Windows Software

After using this program with windows, I must say that it is a solid performer. It offers the tools I need to get the job done, whether I am working in Auto Cad, Excel, or just working in a Word Document. The only draw back that I have found is, this program does not offer the trigonometry functions that are available in my desk top model and my hand held calculator. If you do not rely on the trig functions on a regular basis, then you can not go wrong with this program.Get more detail about Calculated Industries 4105 Construction Master Pro for Windows Software.

Where To Buy Scientific Calculator FX65TP

Recieved it within two days, brand new and at very low prize compare to other sellers. Thanks Get more detail about Scientific Calculator FX65TP.

Shop For Designer Talking Calculator Clock and Music Box

love it for the large easy to read numbers i do not use the talking or music features Get more detail about Designer Talking Calculator Clock and Music Box.

Chocolate Calculator

Calculator works, but the buttons are so hard to push it's not worth it. It is one plastic overlay for all the keys and the plastic is too rigid.
Wasn't practical so we tossed it.Get more detail about Chocolate Calculator.

Sharp QS2760H 2-Color Ribbon Printer Review

I'm an accountant, I've used Sharp Calculators for years. I've tried other brands but ALWAYS come back to the SHARP. This model has been my favorite. The keyboard is comfortable, and allows you to perform many tasks with ease.Get more detail about Sharp QS2760H 2-Color Ribbon Printer.

HP F2229AA#ABA 12c Financial Calculator Top Quality

I happen to buy this product directly from HP. I had it for two weeks and the interal display broke. Called HP tech to find out about getting it repaired, and was told that it was my fault that it broke, and that it was not something that could be repaired, bottom line I was told I had to buy another at 160.00. I have had a complain into Hpheadquarters for about a week now and have not gotten a response. Next step is the better business bereau.Get more detail about HP F2229AA#ABA 12c Financial Calculator.

SHARP EL520VB Scientific Calculator This instant

The product's descriptions are for EL520VB, a medium-low end past year Sharp offering. Yet the picture shows the image for EL520WBBK, a medium end calculator with 419 functions. Which one is Amazon selling?Get more detail about SHARP EL520VB Scientific Calculator.

HP 9G Scientific Calculator Immediately

I bought this because my HP-48 is too big to lug around all the time. Keypad has nice tactile feel. Snap-on rigid case and slide-out plasticized 'quick-reference' guide are good (NB I haven't dropped it yet, but it looks fairly durable...).

I agree with other reviewers that the display of graphs is poor and the display clarity is bettered by other brands/models. In my opinion, the graphical display mode is only useful for viewing a quick sketch of a function. Text/number display is adequate. If the graphing of functions is important to you it may be better to look elsewhere and accept a compromise in other areas.

Most other brands in the price range claim 'algebraic entry - enter problems just as you write them on paper'. In my experience this is never the case - they all seem have exceptions and rules to be remembered and even simple operator precedence (i.e. 2+3x5^2=77, not 227 or 125) is not always got right. HP9g is very consistent and correct in this area. Implicit multiplication (i.e. key 2cos(30)instead of 2XCos(30) or 2A for 2XA) eases problem entry and makes a displayed formula more readable. No built-in complex number handling is a minus point for me. Reviews elsewhere show the HP9g maintains accuracy at extreme values of function arguments - reassuring for professional use. As a working engineer these points are far more important to me than having the best possible display.

Large memory for previous calculations - you can scroll back 25+ lines to check or edit and re-do a calculation.

Quick easy programming in a version of the BASIC language is also a plus point. IF,THEN,ELSE, GOSUB and FOR...NEXT are all supported. Also INPUT and PRINT ease data input and results display which is a major bugbear of most calculator programming.

As you've guessed I like this little calculator. It's no match for the HP professional models (at 6-10x the price...); the graphics might have been better left out; others have better displays: but as a everyday professional tool I find I can use it quickly and intuitively and trust the result where other brands in the same price range have left me wondering if I have really got the answer I wanted.

Get more detail about HP 9G Scientific Calculator.

50g Graphing Calculator, 12-Digit Pixel Display Best Quality

Too Frustrating, Horrible Documentation, Not Recommended

I am an engineer and purchased this calculator (based on amazon reviews) for graduate engineering courses. Several weeks into classes (many hours trying to figure out the functions) it was too difficult to understand quickly and I abandoned it for the semester. I used an hp calculator in undergrad engineering but the complicated new menu layout and the horrible documentation make an awful combination.

I have now spent more 40 hours trying to figure this calculator out and still consider myself confused. I find the examples in the manual poorly written and poorly indexed. Even basic functions are too complicated. Many examples just don't work. For entering a 3x3 matrix I followed the example. There are actually two steps missing which you have to guess and find yourself. Someone should thoroughly test these first.

After feeling I was deceived I went back and looked at the other hp50 amazon reviews carefully. In 20 of the 5 star reviews the reviewer only reviewed the hp50 product which now makes me suspicious. In addition, 15 other excellent reviews are from foreign countries in such simplistic and incorrect english that I wonder if they really saw, used, learned, or tried to program the hp50.

Even re-reading many of the other 4 and 5 star reviews that I think are genuine I noticed a lot of "however..." comments.

Before you buy here are some of my comments. Many are mentioned in other reviews but I give them here to justify my review number.

- Documentation is horrible (as mentioned in many other good and bad reviews)
-Way too frustrating to learn how to use the product
- Many functions are two strokes (shift+function) (like x2)
-888 page manual (4" thick), colossal waste of paper, hardly any writing on each page
- Because the PDF manual is so big it is difficult to navigate
-Index alone is 25 pages, could be on 6-7 pages, too much flipping pages to find things
- ENTER key is now bottom right of calculator (further to travel to enter data)
-I don't like the heavy leather case: clumsy and weighs almost as much as the hp50
-Its a nice case for opera glasses, but for a calculator it should be light and easy/fast to remove (its not)
- Case with calculator inside approaches 2 inches thick (is that necessary?)
- It has a weird magnetic case button that doesn't seal on the first try, you have to push it around until the magnet connects properly every time you close it
- Navigation up,down,right,left buttons are hard to push, slow, and have a loud click
- Battery cover comes off when removing calculator from case, poorly made in China

On the positive side the unit itself seems sturdy not unlike my original hp. Keys are relatively solid. I haven't experienced any mistaken or extra keystrokes as others have, but it is still new. Screen seems fine.

I'm stuck with it (almost 3 months so far) so maybe after another 3 months I'll start to change my mind.

In summary, if you want to own a calculator for 3-6 months and still have no idea how it works, and if you like feeling stupid and frustrated, this is the calculator for you. You will be guessing how functions work and wasting a lot of time.

I equate the experience to learning a completely new programming language by myself with no help from anyone and little documentation. This should not be from HP.

It appears many satisfied hp50 users are people who already own the hp48 (which i did not), and with years of experience with that product the learning curve might be fine.

Save yourself the headache and carefully read the 5star/4star reviews. You will see that many have a "however..." section talking about the bad points. I wish i would have read them more carefully before I bought.

The product is too frustrating. Not recommended.

Get more detail about 50g Graphing Calculator, 12-Digit Pixel Display.

TI-83+ Graphic Calculator Get it now!

Avoid this one folks! One look at the price tag is enough to make any college student shiver. While its very possible that there's some sort of error the current listing of well over 1k is Not what you need to pay. Amazon and many other sellers here offer the same one new for under $100.

NB, this is not a review of the calculator which my college prof seems to like quite well.Get more detail about TI-83+ Graphic Calculator.

Canon DK100i USB Calculator (9722A001AA) Buy Now

You cannot tell from pictures how a product will feel and perform. I took a chance on this one and have been pleasantly surprised. I've never carried a separate keypad for my laptop, but I always carry a calculator. The added functionality is welcome. The keys operate smoothly. The keyboard is not standard size, but large enough to operate with three fingers. The display is large and easy to see. It has rubber feet that stay put as you enter keys. When attached to a computer, you can choose between entering numbers directly like a standard keypad or you can go offline, make calculations, and send the result to your spreadsheet or other software. The keyboard includes arrow keys for navigation and the all important backspace key. Pretty Cool! I showed my new device all around the office and now I am Mr. Cool!Get more detail about Canon DK100i USB Calculator (9722A001AA).

Sharp EL-25BBL Quiz Calculator Order Now

I bought these for my entire third grade class. I love using them for facts practice before our lesson each day. The kids love them because they are easy to use, and show their scores. Great little practice fact calculator. Hard to find in stores too.Get more detail about Sharp EL-25BBL Quiz Calculator.

Casio Scientific Calculator FX260SLR-SCHL-IH Decide Now

I have an old casio that I have had for more than a decade, so I bought this calculator. I have no complaints. Casio makes great calculators. Get more detail about Casio Scientific Calculator FX260SLR-SCHL-IH.

Casio FX-7400GPLUS Graphing Calculator Right now

Not that bad of a calculator. It graphs and calculate pretty good. However, It can be difficult to use because the key are confusing. Purchase with manual is better. Get more detail about Casio FX-7400GPLUS Graphing Calculator.

Lowest Price Casio DM-1200TM Desktop Calculator

These new units are reliable, easy to see and the buttons are large enough with a generous amount of space between them for people with larger fingers. The large display is easy to read and the solar power is flawless in operation from morning to night.
As usual, Casio continues to lead the market with innovative ideas and products that gives them the edge on their competition. Quality is the key with unfailing reliability, Casio has it all!
Get more detail about Casio DM-1200TM Desktop Calculator.

Low Price HP Calculators HP33S Scientific Calculator F2216A

Programming instructions provided reference an expired manual. The new manual has changed page numbers, equations, and equation forms making this program guide useless.

The technical support number provided is a fax number and the email address is returned as undeliverable.

Amazon should be ashamed.

****Once I contaced the seller through Amazon and convinced them of the problem, they identified a printing error that caused older manuals to ship as current. Once the problem was identified, a current manual was promptly provided. I would upgrade my rating to four stars, reserving one because of the delay in my test prep.Get more detail about HP Calculators HP33S Scientific Calculator F2216A.

Save Sharp VX2128V Portable Desktop Handheld Calculator

This is a great calculator for auditors and accountants. The calculator is slightly bigger than regular hand held calculators but it feels like a regular desktop printing calculators. The buttons doesn't feel too clunky or slippery. The battery is easily replaceable by unscrewing a small slot, which you don't need to take the entire back casing to remove the battery. Though the price is a bit high (4 stars), I expect this calculator to last for at least 15 years (For those of you who are picky about depreciating fixed assets).
Get more detail about Sharp VX2128V Portable Desktop Handheld Calculator.

Discount HP HP49G Graphing Calculator

Worst calculator I have ever used. The buttons are spongy and it has not lasted long. I need to replace it because the divide key no longer works and to that I have to say thank God.Get more detail about HP HP49G Graphing Calculator.

Cheapest Chocolate Scented Calculator

This was a prize for my children't recent fundraiser, but instead of selling a million items, we decided to find it online and purchase, which we did. It arrived quickly and smelled just like chocolate. Great item, would be awesome for a stocking stuffer.Get more detail about Chocolate Scented Calculator.

Cheap Sharp 12 Digit Hand Held Calculator AC/DC Power

This is a small printing calculator, a decent choice if you want something smaller than the space-hogging large calculators. 4 AA batteries actually come with it. But although it's listed as AC/DC, no cord is supplied. Apparently that's an "extra".Get more detail about Sharp 12 Digit Hand Held Calculator AC/DC Power.