HP 33S Scientific Calculator (F2216A)

Product Description

HP33S Scientific Calculator

Amazon.com Product Description

Pocket-sized and full-featured, the HP 33s Scientific Calculator is designed for engineers, surveyors, college students, scientists, and medical professionals. Its two-line display is easy to read, and at only 4.2 ounces, the unit slips easily into your pocket for travel.

Boasting both Reverse Polish Notation (RPN) and intuitive algebraic data entry modes, as well as 32 KB memory with 27 memory storage and recall functions, the 33s is ideal for solving a variety of science and engineering problems.

Functions include trigonometric, percentage, conversion, coordinate, time, angle, probability, factorial, gamma, fractions, and a variety of statistical operations. The calculator can solve equations, integrate, work with complex numbers, and is programmable. The 386-page manual thoroughly reviews the calculator's many features. When purchased new, the unit is backed by HP's one-year limited warranty.

What's in the Box
Calculator, two 3-volt lithium coin batteries (CR2032), instruction manual

Customer Reviews:

Great for Engineers.......2007-09-21

I just got my HP33s a few days ago, and I am not disappointed in any way. It is very powerful with lots of features and options, extremely light, and very comfortable both handheld and while using it on my desk. I did not have any problems reading the display, and the keys, although arranged differently from the old HP45, are comfortable, not sticky, and have a great tactile feedback. It is easy to write programs and macros, and all the features I frequently use in my everyday engineering work are directly available on the keyboard. It can also work in binary, octal, and hexadecimal (I wish I had one while I was in college). It does not come with a charger or wall plug, or a computer link, but it uses two parallel batteries, so you can replace them one at a time and never lose whatever is in the calculator memory. I have not tried the algebraic mode yet but I find this to be a great feature for somebody who is not used to RPN yet. It includes all the trig, log and stats functions and also includes many conversions and 40 constants so you do not have to remember Avogadro's number or the speed of light. Yesterday I challenged my son, who is in engineering school, to solve a few vector analysis problems, he with his TI83 and I used my new HP33s; I beat him every time. Overall I think it is a great buy.

Solid Pocket Calculator with Good Balance Between Power and Portability........2007-09-05

I purchased this calculator for my upcoming Fundamentals of Engineering exam, and although it is the priciest of the calculators allowed on the exam, it's worth every penny. The calculator is programmable with equations, can perform integrations, and can solve equations via HP's Solve application. The only thing I was disappointed with was the programming structure. The calculator has ample memory to store programs, but it only allows programs to be called by labels which are limited to one letter from the alphabet. Still though, the ability to solve equations in a program and integrate within a program more than make up for this lack in programmability. As a plus, this calculator allows the use of both algebraic entry or Reverse Polish Notation entry. Anyone who works with difficult equations with multiple nesting of operators will immediately appreciate RPN once they learn how to use it. It saves me a good twenty keystrokes every time I solve a problem.

One of HP's lesser efforts.......2007-09-03

I am an engineer, and have been using HP RPN calculators daily for over 32 years, first in college, then in my professional practice. I have often said that the day I can no longer obtain one will be the day I will have to retire. I'd almost rather go back to a slide rule than use an algebraic calculator. My most recent prior calculators (a 32SII and a 42S) were showing distinct signs of aging, so I was VERY pleased when the 33s came out.

That said, this is my least favorite but one of all the HP calculators I have ever owned. (The least favorite is the 49gII graphic calculator, which doesn't even implement HP's signature RPN stack correctly.) The display of the 33s is of poor quality, and hard to read, the keys are sticky and don't always "register" my keystrokes, and the key placement design is very bad. One of my pet peeves about HP has been that with every generation of calculator they redesign the keyboard layout. The five HP calculators I have in front of me as I write (one of them an emulation running on my Palm T/X) have four different positions of the all-important "ENTER" key. On the 33s, the "ENTER" key is very small, and next to the decimal point, with the result that I frequently hit "ENTER" when I mean to get the decimal. This, plus the sticky keys, causes me to make more mistakes in calculations than usual. (Fortunately, after 32 years, I usually know when I've made a mistake. Sometimes I think the whole point of calculation is just to verify the answer I already know to be correct.)

I should comment that I hardly ever use some of the advanced features. I've not even figured out how to program it. In the early days, I used to write a LOT of calculator programs (who remembers the magnetic cards on the HP67?). Nowadays, though, I have a computer.

The best calculator for NCEES exams.......2007-08-25

Like many buyers of the HP-33s, my purchase decision was forced by the NCEES calculator policy on the April 2005 FLS exam. As of 2007, NCEES still only allows 4 specific models of calculators:
1. Hewlett Packard - HP 33S
2. Casio - FX 115MS or FX 115MSPlus (may have SR designation)
3. Texas Instruments - TI 30X IIS
4. Texas Instruments - TI 36X SOLAR

There are several points of difference that separate the HP-33 from the other 3 allowed models: It is the only one that is programmable, and the only one that uses RPN (a must-have feature for most users that have ever worked with an RPN calculator). The HP-33 has 26 user memories, the next best model on the above list has only 5 memories. Many types of problems on the PE and LS exams may involve multi-stage solutions where the ability to store up to 26 intermediate numbers will save you from having to write them all out on paper. A typical example (from the LS exam) is State Plane to Geodetic Coordinate Conversion. This problem involves 4 separate, inter-related equations to be solved, which use 6 or 7 different table constants and a dozen or more intermediate variables. By the time you have worked through one of these problems, you will have generated values for at least 24 different constants and variables, and the HP-33s is the only calculator on the approved list that will let you store them all. For the FLS exam, I created programs to solve Horizontal Curves, Vertical Curves, Grade/Bearing/Distance Intersections, Areas of Irregular Polygons by Coordinates or by Traverse, and the above mentioned State Plane to Geodetic conversion. Having these programs on the calculator probably saved me at least 30 to 45 minutes of manual number crunching in the exam, and probably prevented many erroneous answers due to "fat-finger" mistakes that would have been made if the problems had been manually calculated. Bottom line is that the HP-33s is really the only calculator you should even consider for an NCEES exam.

That said, I next want to lay out some of the gripes I have with the HP-33s.
1. Battery life is poor. I personally dislike CR-2032 batteries; they don't last very long in power-hungry devices like programmable calculators, making them pretty expensive. The manufacturers like them because they allow the device to be a lot thinner than it would be if powered with "AA" or "AAA" cells like the HP-50. My HP-33 goes through a set of batteries about every 6~9 months. The new HP-35 also uses CR-2032, and HP's web site states battery life on that model is also only about 9 months.
2. Memory is not "non-volatile". If you let the batteries die, all programs and data are lost and have to be keyed in again by hand, since the HP-33 has no way to back up it's memory to a PC, flash card, or other non-volatile storage. With 32K of memory, the HP-33 can hold many thousands of steps of program code: enough that it would take you a whole weekend or longer to key it all back in again if you actually had filled that whole 32K with programs.
3. The programming language, while relatively powerful for a sub-$100 calculator, has a few really annoying quirks. The worst is probably that there are only 26 "program labels" available ("A" through "Z"), and you have to use a label for the first line of any program "GOTO" or "EXECUTE" call. This is really bad news for any kind of program that involves a lot of conditional testing where you would branch to one or another subroutine depending on whether the test result is "yes" or "no". It would be far better if the language allowed for subroutine branching to a specific line number after a conditional test, so that you could save those precious few Labels for the first lines of the main programs. Not having line-number branching requires the programmer to write code that is a lot bulkier (and slower) than it could be, in the effort to conserve those 26 labels.
4. Readability of the display is really poor compared to most other calculators. As other reviewers have mentioned, the decimal point is TINY and far too easy to mistake for the comma in numbers with more than three digit places left of the decimal point. One can only hope that this annoyance has been fixed on the new HP-35. I do like the two line display, it is really nice for functions like Polar to Rectangular conversion. Once you have used any calculator with a two-line display, you won't want to go back to one that doesn't have this feature.
5. I don't like the slanted keyboard, which is unlike that of any past HP calculator. The fact that the "ENTER" key is the same size as all the other keys is really irritating, considering that HP has always used a much larger "ENTER" key on it's RPN models. People who have not previously owned HP calculators may not have an issue with this. On the plus side, the keyboard is at least pretty comprehensive and gives access to most of the commonly used commands without having to dig too deep into sub-menus.
6. Programs sometimes seize up, or go into an endless loop that you can't kill with the "C" key; this is especially noticeable in programs that make use of the equation solver. Fortunately, there is a button on the underside of the calculator to force a reboot if none of the regular keyboard commands will stop a runaway or seized-up program. You will need a sewing needle or pin to push this button, as it is accessed through a really tiny hole (~0.7mm) in the casing.
7. Durability (or lack thereof). My HP-33s suddenly died about 28 months after it was purchased, for no apparent reason. Others have reported similar premature deaths of this model, raising questions about the build quality. Many people own HP calculators that were manufactured 20+ years ago that still work. I myself have a 1981 HP-67 that still works except for the card reader (it seized up in 1988 and HP no longer had the parts to repair or replace it). The point being that HP has always had a good reputation for building calculators that could stand up to hard use; the HP-33 just doesn't seem live up to the old standard of quality and durability.

SUMMARY: The HP-33s is currently by far the best calculator choice for the NCEES Engineers and Land Surveyors exams. I would rate it 5 stars in that respect. And it is a pretty good calculator at it's price point. BUT, it has so many (relatively minor) annoyances and shortcomings that, if you are NOT buying a calculator specifically for an NCEES exam, you might be better off with the new HP-35, which is priced only a few dollars more than the 33 and has 800 memory registers (to the HP-33's 26). Then there's the HP-50G, which has light-years more capability than the HP-33, and is only $123 right here on Amazon.
RATING: Could have been 5 stars, but the questionable build quality and durability, short battery life, hard-to-read display, and lack of indirect addressing in the programming language force me to rate this calculator at only 4 stars.

NOTE: Taking a look at the specs for the new HP-35, I get the impression that it might have a lot in common with the HP-33s. It has about the same amount of RAM user memory, 30K, and uses the same CR-2032 batteries (a bad sign as far as I'm concerned). All I could find on-line at HP's web site was a basic spec sheet that doesn't go into any details.

The biggest problem with the HP-33 is probably the fact that you can't back up your programs, risking the loss of a lot of time to key everything back in if the batteries go dead. On the other hand, it is this very lack of connectivity to other devices that is the reason that the HP-33 is one of the four calculators that NCEES does allow in it's exams.

UPDATE: The HP-35s uses pretty much the same RPL programming language as the 33s, but it has been upgraded to allow branching to line numbers! YAYYY! Thanks HP for listening to customer feedback. The HP-35s is missing a couple of functions that have been on most other HP scientific calcs, most notably Polar/Rectangular Coordinate conversion, but this can be worked around with a small program. If the NCEES adds the HP-35s to the list of approved calculators, I would definitely recommend it above the 33s.

Decent Calculator.......2007-08-24

I am just getting used to it. I still have a couple of years before I take the P.E. exam (I hope that it is still allowed on it). Previously used HP 48GX. RPN input is the way to go. This calculator can do both RPN and algabraic input though. I like the size and weight as well.

Casio FX-115ES Advanced Scientific Calculator with 2-Line Natural Textbook Display

Average customer rating:

Great Calculator - Teeny Weeny Manual
8th Grade Daughter gives it two thumbs up
Amazing technology for the price
Excellent value - too bad it's not allowed in the PE exam now
Good Value!

Casio FX-115ES Advanced Scientific Calculator with 2-Line Natural Textbook Display

Manufacturer: CASIO
ProductGroup: CE
Binding: Electronics

Scientific | Calculators | Office Electronics | Categories | Electronics

Office Electronics | Refurbished & Used | Special Features | Electronics Features | Electronics

Stationary | Home | Categories | Target
Similar Items:

Product Features:

279 functions, including 40 metric conversions
2-line, 12-digit Natural Textbook display
Solar Plus power with battery back-up
Slide-off protective hard case
Currently permitted on AP, SAT and PSAT/NMSQT

ASIN: B000A3IAHM

Product Description

The FX-115ES Advanced Scientific Calculator has 2-line Natural Textbook Display and is Solar Powered. An advanced Scientific Calculator that can do Metric Conversions and has natural 2-Line textbook display. Natural textbook display shows formula and results exactly as they appear in the textbook.

Customer Reviews:

Great Calculator - Teeny Weeny Manual.......2007-08-30

Being relatively new to scientific calculators the instruction manual is quite important..... well guess what, despite the warnings from others that this manual is almost unreadable I took a chance and purchased this calculator and lo and behold it's true, couldn't read the thing. Whipping out the magnifier and doing my best goober-impression with a blanket sized manual, I managed to read some before realizing how ridiculous this was. Finding the manual and appendix on-line I proceeded to try and print it but it's the same thing, same size. Between the OS X printer driver, Adobe Reader print selections (all a tangled mess)and the small size after two hours of trying to print a larger "typed manual" using duplex printing, much wasted ink and paper, I gave up and decided to returned it. The state of printing a simple B&W PDF manual in 2007 is deplorable, why can't they get something fundamental like this right. If you are counting on the "manual" to help, forget it, unraveling this huge single sheet of paper in class is a joke, if you know 'calculators' by all means, have at it.

8th Grade Daughter gives it two thumbs up.......2007-08-24

After reading the Amazon online review of the Casio FX-115ES, I decided to give it a try for my 13-year-old daughter who just entered the 8th grade. She is taking Alegbra 1 honors. I was a little hesitant since TI seems to be the dominant calculator at her school. She came home from school and was amazed that the calculator would simplify fractions in natural language. For example, she entered 2 divided by 22 and the calculator gave her the answer of 1/11. Of course, you click one key and it will give you the decimal equivalent. So far, I'm very happy with the purchase. I did purchase it locally at target for $18.99.

Amazing technology for the price.......2007-08-09

This is a pretty nice calculator, and Casio was able to put an amazing amount of gadgetry in it for below $20.

There are some little things that could be problematic: 1) The manual is printed on two poster-sized folded sheets of paper. Very small print, too. A bound booklet would be much nicer for the amount of information that needs to be covered.
2) It does too much for a school calculator. Some of the pretty-print/textbook features I consider disadvantageous for math understanding.
3) The algebraic/textbook entry becomes cumbersome for doing long repeated calculations -- also, there's no way to store an expression/formula/equation for use after (auto) power-off.

Excellent value - too bad it's not allowed in the PE exam now.......2007-07-30

I bought two of these calculators for the October 2006 PE exam, which I passed. I was very impressed with the capabilities of this inexpensive calculator - it did everything I would want for the exam, except perhaps being able to store pre-programmed equations, like the HP-33s. I had been using a TI 36X solar, and the added functions and display size of the Casio shaved quite a bit of time off my computations. I use it daily at work now. (Though I have already ordered the new HP 35s - I just couldn't resist! Any engineer who went through school using one knows that an HP RPN calculator is a "real" calculator!)

Warning - this calculator is no longer allowed in the PE exams by NCEES. I have no idea why. But, the similar 115"MS" model is still allowed, and is presumably the same calculator as the ES.

Good Value!.......2007-06-23

My wife teaches Middle School and purchased this for pre-Algebra after researching it on the web. Worked out perfect for her, and she considered it an excellent value for the money, and has had no problems with it. Easy to use. Instructions were easy to understand and useful.

Casio FX-300MS Plus 229-Function Scientific Calculator

Average customer rating:

Good college calculator
Amazing
good calculator gone cheap
This calculator is replaced by the fx-300ES... DO NOT BUY fx-300MS
it works for me

Casio FX-300MS Plus 229-Function Scientific Calculator

Manufacturer: CASIO
ProductGroup: CE
Binding: Electronics

Financial & Business | Calculators | Office Electronics | Categories | Electronics

Scientific | Calculators | Office Electronics | Categories | Electronics

Office Electronics | Refurbished & Used | Special Features | Electronics Features | Electronics

Stationary | Home | Categories | Target
Similar Items:

Accessories:

Product Features:

Large 2-line display
229 built-in mathematical functions
Enter fractions, add, subtract, multiply, divide, raise
Auto replay function
18 levels of parentheses

ASIN: B00004U12N

Product Description

Every student from 5th grade on can use the help of a scientific calculator for school and home assignments. Casio FX300ms is a powerful, compact calculator that's geared to provide function and use through high school and college. Time (DMS) calculations Logical operations 18 levels of Parentheses Converts and calculates different numerical bases (Decimal, Binary, Hexadecimal, Octal) Trigonometric functions 1 constant memory Powered by solar cells with internal battery back-up Convenient and protective case Size?3 w x 5 d Use DUR PX76A as a replacement battery

Amazon.com Product Description

For math and science students at all levels and for any home or office needing to compute algebraic equations from time to time, the Casio FX-300w Plus calculator is an indispensable tool. From high school onward, in lab classes and for exams, the FX-300w features a two-line display and supports complex number calculations, algebra, calculus, and 18 levels of parentheses. Always powered up, it's just as useful in a household or office for all your calculating needs, from finances to converting cooking measurements, and for anything else you can think of when you wish you had a calculator at hand.

The large, readable two-line display exhibits 10 digits, shows the problem as you write it, and then shows the answer alongside, permitting better tracking of your equation-solving process. With the Casio FX-300w, if you make an input error, you can quickly clear it with the backspace key. Tap the auto replay function to check your last equation. You can also use 229 built-in mathematics functions, enter fractions, raise y to the x power, figure standard deviations, process degree/radian/grad conversions, calculate sine, cosine, tangent, and inverse, and compute permutations and combinations. Plus, call upon the FX-300w's basic scientific, exponential, and trigonometric functions for everything you need to complete your assignments and lab work. Key in and program formulas to save for future uses.

The FX-300w provides one independent and six constant memory keys. It has an efficient key layout, making this an easy-to-use basic scientific calculator, offering all the functions you'll need in a solidly constructed unit. And solar power means never replacing batteries; the backup battery assures you'll always have power when you need it. --Barbara Price

Customer Reviews:

Good college calculator.......2007-09-26

Very easy to use product that covers all needs of a Freshman, without having the more complex funtions not allowed at exams. Great value for the money.

Amazing.......2007-01-04

My new school forced me to get a scientific calculator after using a graphing calculator (TI-83) for several years. Using this calculator is a breeze. I now prefer to use it over my TI. The natural textbook display allows one to input a long formula error free. I highly recommend this calculator.

good calculator gone cheap.......2006-11-10

Very good calculator. I have been using it for college math and I have yet to find anything negative about it. I broke my last calculator which was 3 times the price of this one but this one comes equipped with a hard plastic cover which slides on and off. It stays on too; pretty impressive. It has a two line display and a memory cache so if you make a mistake, forget how to complete a previous problem, or you write the answer down wrong, you can scroll through your previous calculations to find what you need. Not bad for 10 bucks.

This calculator is replaced by the fx-300ES... DO NOT BUY fx-300MS.......2006-10-01

I was surprised to find that Amazon directed me to to the fx-300MS page when I searched for fx-300ES. They are not the same calculator.

I prefer not to rate the MS version, but I must do so to bring forward this post. The item I have is the ES version.

The major difference between the MS and the ES is the display.

I AM REVIEWING THE FX-300ES (NOT THE MS THAT YOU MAY HAVE LANDED ON). If there was a page for for ES, I would give it a 4/5.

The ES has a large multi-line dot matrix display. I bought it becuase it will let me review my entries and correct them. Perfect for balancing the checkbook... it allows one to review and correct mistakes.

At $12.99 at Costco, the fx-300ES is a good value just for that capability. Most 'regular' sub $20 calculators do not allow you to go back, reivew, and correct.

I've already got a multi-line advanced scientific calculator... but I am not going to use it to balance my checkbook! It is kept safe for engineering.

Still, I should note that the fx-300ES is a decent algebraic calculator, well suitued for even a high school student.

It has one major flaw that I can see after a few hours of ownershiop. I hope these 'text' algebraic expressions will be clear. I would not know this if I had not read the manual.

I advise anybody buying a 'serious' calculator to see if they can download the manual from the manufacturers' Web site. Depdending on mode and method of entry, a simple epression my yield unexpected results on this calculator. Fortunately, this aspect is clearly documented.

Example:

3 / 2 * pi = 4.7~ (evaluated correctly L to R)

3 / 2pi = 4.7~ (evaluated incorrectly, not respecting adjacency of the constant)

3 / (2pi) = .47~ (evaluated correctly)

In linear mode:
3,2pi
again not respecting that 2pi must be evaluated first

In math mode (only if fractional entry is used... a nice feature):
3
-----
2pi
= .47~

(correct as if it were written)

It should be noted that this calculator it is not good for programmers who need binary, hex, etc.

it works for me.......2006-08-29

the class all got ti 30 but i had this from long ago and i find i can do everything just as good as them and i can do it faster but i think that is 'cause i use it longer. a little tricky to figure the function protocols but do-able. i do the regular maths stuff: exponentiation, conversions rect <=> pol, and rest of it

Casio FC-200V Financial Calculator with 4-Line Display

Average customer rating:

Not Bad
financial calculator
Sper product
Recommended for beginner's ONLY
casio FC-200V

Casio FC-200V Financial Calculator with 4-Line Display

Manufacturer: CASIO
ProductGroup: CE
Binding: Electronics

Financial & Business | Calculators | Office Electronics | Categories | Electronics

Office Electronics | Refurbished & Used | Special Features | Electronics Features | Electronics

Product Features:

Full dot, 4-line display
Cost/sell/margin, investment appraisal, amortization
Converts between percentage interest rate and effective interest rate
Simple and compound interest calculations, depreciation
Slide-on hard case; solar power with battery back-up

ASIN: B0009OMTPG
Release Date: 2005-07-20

Product Description

Full dot, 4-line display / Day calculation / Depreciation / Bond calculation / Break Even point calculation / Statistics / Slide-on hard case

Customer Reviews:

Not Bad.......2007-09-06

The product is a little difficult to operate, the product should have less complicated directions, If I had it to buy again I would chose another product.

Not Bad

financial calculator .......2007-05-10

The product offers the facility to make the financial calculations of a fast and reliable way

Sper product.......2007-05-08

Purchased financial calculator for my college accounting class. Meets all the requirements for course

Recommended for beginner's ONLY.......2007-04-18

I teach finance at the university at undergraduate level and our department recommends using this calculator for the students. The calculator work well for fundamentals of finance classes where the number of years are even numbers and do not include decimals. I have used this calculator to calculate bonds in advance finance classes were the number of years includes decimals (i.e. 1.71786). The answers it gives you are wrong. Try solving bond valuation manually where N includes a lot of decimals and compare it with the calculator. You will find that the calculator will give you wrong answers. I had tried Texas Instruments or HP for the same problem and I got correct answers. I recommend this calculator for beginner's in finance or people who do not want to solve complicated finance problems. If you plan to use for complicated problems, I recommend Texas Instruments or HP.

Here is an example:
Use CMPD for the following inputs:

N=3.43562
FV=100
PMT=1.375
I=1.355%

The prevent value should be -100.066697 but the calculator does not provide that answer. Try it with Texas Instruments or HP and that is the answer you will be getting but unfortunately with CASIO, it does not give you the correct answer.

casio FC-200V.......2007-02-12

The financial calculator works good. The directions really helped me to figure it out with ease.

Texas Instruments TI-5018 Desktop Calculator with SuperView Display

Average customer rating:

Useful Calculator
Great Calculator
Great Desktop Calculator

Texas Instruments TI-5018 Desktop Calculator with SuperView Display

Manufacturer: Texas Instruments
ProductGroup: CE
Binding: Electronics

Texas Instruments | Brands | Electronics Features | Electronics
Similar Items:

Canon LS82Z Calculator

Product Features:

Easy-to-read, 12-digit display, solar powered
Large keyboard with contoured keys
Backspace key for corrections and a percent key to figure sales tax, markups, and discounts
Grand Total and Mark Up keys
Selectable decimal and rounding settings

ASIN: B00004TS1A

Product Description

Desktop Desktop

Amazon.com Review

The TI-5018 is an ideal calculator to leave sitting on your desk, but its size makes handheld use a little awkward. It doesn't offer much in the way of features, but the ones it does have are extremely useful. For example, in our tests of the calculator, we performed a series of separate calculations, storing the results in memory each time we pressed the equals key. Pressing the grand total key then added and displayed the results of these separate calculations. A handy switch at the top of the calculator lets you turn the grand total feature off to perform calculations that won't be included in the grand total results.

Two switches at the top of the calculator let you round decimals up or down and choose from several decimal display modes, including floating, fixed (0,2,3), and an add mode. Dedicated square root and percentage keys make these operations simple, and a backspace key corrects entry mistakes without having to clear the entire line. As we used the calculator, mistakes were rare, thanks to the large and responsive keys, and the few mistakes we made were easy to spot as they showed up on the big display. The display is angled slightly to make it easier to read when the calculator is sitting flat on a desk. That position also allows the solar cells that power the unit to soak up as much light as possible, although the included battery kicks in when room lighting dims.

For those who need only basic functionality in a form factor that's easy to use and doesn't take up an inordinate amount of desktop space, the TI-5018 is a good choice. --T. Byrl Baker

Pros:

Handy grand total feature
Relatively large keys and display
Backspace key for quickly correcting mistakes

Cons:

Few advanced features
Too large for comfortable handheld use

Customer Reviews:

Useful Calculator.......2005-10-24

I bought this calculator for my 6th grader. I like it because the key pad was large and the display included commas. To my dismay she said it was "too" large. We still use it though.

Great Calculator.......2005-08-16

This is the perfect type of calculator for the desktop. It is easy to read and use.

Great Desktop Calculator.......2002-04-19

OK, so it's not the smallest portable calculator to try and jam in your pocket. It's not one you want to take to your Calculus class or figure out P & L statements for your million dollar business. What it is, is the best desktop calculator for doing basic, every day type of calculations like balancing your checkbook. The numbers on the keys are large and easy to read, it has a moveable decimal, and a handy backspace key for undoing an errant keystroke without clearing the entire entry. The display is nice and big, slightly tilted for easy viewing, and it has a non-volatile memory so it remembers your stored figures even when turned off. What sets the TI5018 apart from other similar calculators is that instead of shutting itself off automatically after a period of inaction, it has a manual off switch. I can't tell you how many times the battery-saving automatic shutoff on my old Casio wiped out 20 minutes of work when I paused for 5 minutes to answer the door. Besides, why do Solar powered devices need an auto-shutoff anyway?! After 5 years of heavy use in a dusty environment, the simple to use Texas Instruments TI5018 Desktop Calculator has performed flawlessly. I recently bought two other similar-looking calculators for my home, one from Sharp and one from Radio Shack, and returned them both. I am now purchasing a second Texas Instuments TI5018.

Twin Powered Display 12 DigitLCD Display

Average customer rating:

i LOVE this 10-key!!!

Twin Powered Display 12 DigitLCD Display

Manufacturer: Sharp
ProductGroup: CE
Binding: Electronics

Basic | Calculators | Office Electronics | Categories | Electronics

Notebook Personal Computers | Computers & Monitors | Technology | Categories | Office Depot

Selling Qty: 1 EA
Assembly Required: N
Color:
Recycled Product: N
Post Consumer Waste: 0%

ASIN: B00006B8GO

Product Description

(Shp) QS2130 Commercial Desktop Calc

Customer Reviews:

i LOVE this 10-key!!!.......2007-08-22

This calculator is simply AMAZING. Every single time I try to add or subtract or multiply or find the square root of a number in my head, I get it wrong. This handy little device is not quite the size of a laptop but it is solar powered and never needs to be plugged into a standard outlet. Even though it does not have the whistles and bells like Bluetooth or wireless internet access, it has NEVER miscalculated an equation for me. I carry this calculator with me everywhere in the Sharp brand leather pouch which slips easily into any backpack or handbag. The buttons are large and easy to find. You will not be disappointed with this handy pocket computer.

Canon LS-85H Portable Display Calculator

Average customer rating:

Warning: Extremely easy to use.
Good for general Office

Canon LS-85H Portable Display Calculator

Manufacturer: Canon
ProductGroup: CE
Binding: Electronics

Basic | Calculators | Office Electronics | Categories | Electronics

Office Electronics | Refurbished & Used | Special Features | Electronics Features | Electronics

Product Features:

8 digits, single live memory
Dual power system by automatic selection--solar powered or alkaline battery
Eye-angled, upright Liquid Crystal Display, tilted for easy viewing
Spacious keyboard with large, easy-to-use keytops
Double-size "+" key for easy operation

ASIN: B00000K3T0

Product Description

Dual-powered desktop calculator combines portability with a large, eight-digit, eye-angled upright display and convenient one-touch function keys. Offers a valuable tool for those who need a dependable calculator for deskwork or on-the-go calculations. Functions in any light and automatically switches to battery power when it gets dark. Other features include floating decimal point system, automatic power off function, percentage, square root and sign change function and three-key memory.

Amazon.com Product Description

The Canon LS-85H calculator does what a simple calculator is supposed to do quite handily: it easily accomplishes basic mathematical functions via a keypad with practical key size and has provision for memory calculations, working with percentages, and finding square roots. While it is limited by its capacity to work with only eight digits, this calculator should be adequate for simple mathematical duties. Push the LS-85H beyond it numerical limit, and an overflow function returns an error message and freezes the keyboard.

Measuring a little less than 4 by 5.25 inches and boasting a large, upright display, the LS-85H is easy to use, and is easy to read in well-lit rooms. Powered by a solar cell, the LS-85H also contains an alkaline battery which allows the unit to be used under most lighting conditions. Battery life is dependent upon usage, though once the alkaline battery is discharged the calculator can still be used on solar power. A new battery can only be installed at a Canon Service Center. To help conserve battery power, the unit automatically turns itself off if it is not used for eight minutes. A tap on the N/C key turns it back on. --Luis Uzeta

Customer Reviews:

Warning: Extremely easy to use........2006-12-24

I bought this to replace a calculator I was given at work. The unit my employer provides rounds off its calcuations. It also has a switch marked "5/4" for which no one seems to know the purpose. In other words its "user friendly".

Canon to the rescue. This unit has two wonderful features. (1) It adds, subtracts, multiplies and divides. (2) That's all it does. So when you're on the phone with someone, trying to figure out what the total is, you don't have to worry about accidentally getting the square root of pi.

Good for general Office.......2000-10-21

This calculator is good for office general purpose

Average customer rating:

One word: Great
A favorite calculator.

Canon TX-220TS Calculator

Manufacturer: Canon Office Products
ProductGroup: CE
Binding: Electronics

Basic | Calculators | Office Electronics | Categories | Electronics

Block Products | Brands | Electronics Features | Electronics

Basic calculator with sales-tax keys
12-digit display
Hard plastic keys
Battery and solar powered
Easy to use

ASIN: B00005MO84

Product Description

Canon TX-220TS Calculator

Amazon.com Product Description

Canon's TX220H calculator saves time and effort in classrooms, homes, and offices. It provides a range of functions for quick calculations and easy figuring of finances. The large, 12-character display is angled to reduce glare and eyestrain, and the numbers look crisp even in low light. Extra-large keys and special functions keys increase your accuracy and calculating speed.

The TX220H features all the basics of calculation: addition, subtraction, multiplication, and division, plus a sales-tax key, square root function, sign change, and MU. This portable calculator measures approximately 6.5 by 6 by 1.25 inches and features an automatic power selection that shifts between solar and battery power as needed.

Customer Reviews:

One word: Great.......2007-04-29

Great business desktop calculator. Wide-screen, beautiful buttons and tilt display. I'm proud to have it grace my desk.

A favorite calculator........2007-04-17

I added a correct photo.
12-digit display (adjustable)
5.75"Wide x 5.75"Deep(5.25"deep when tilted up)
Cost-sell-margin calculations
Quick and easy tax calculations
Adjustable tilt display
Auto power off
Solar powered w/battery backup
A desk calculator that isnt as big as others.
I rated this 4 stars, based on its description, after I ordered it, but now that I have it I give it 5 stars, tho apparently I cant change my original vote.

Graphing Calc with 2 Sided Keypad Lrg 22 CHAR/8 Line Display 64KB

Average customer rating:

Not worth it
buy a ti

Graphing Calc with 2 Sided Keypad Lrg 22 CHAR/8 Line Display 64KB

Manufacturer: Sharp
ProductGroup: CE
Binding: Electronics

Selling Qty: 1 EA
Assembly Required: N
Color: WHITE
Recycled Product: N
Post Consumer Waste: 0%

ASIN: B00007IFM5

Product Description

MODEL- EL-9900C VENDOR- SHARP ELECTRONICS FEATURES- LCD Graphing Calculator with Reversible Keyboard Large 22-character display by 8-line LCD with 64KB memory and D.A.L. (Direct Algebraic Logic). Split display, equation editor Multiple slide show Graphic Solver Function Mixed Fraction entry and output Catalog Feature for quick access to commands Uses 4 AAA Batteries Attached Hard Cover MANUFACTURER WARRANTY:andnbsp;andnbsp;.

Customer Reviews:

Not worth it.......2007-06-29

Initially this seemed like a real good buy. After using it for a week, I switched back to my older Casio calculator. The biggest problem with this Sharp is that the keys are awful: if you write 123, you press 1, then wait one second, then press 2, then wait 1 second, then press 3. In all, you end up typing in extremely slowly because if you press the keys in quick succession, this calculator simply stops registering your input. If you're an advanced calculator user, you'd want to be able to type fast and without looking at the screen. This will not happen on this calculator. Often, I'd type too fast and not realize I was missing digits or brackets, which gives wrong answers. This extremely frustrating machine will give you a headache fast. It gets 2 stars because otherwise it has the same features as your average graphing calculator.

buy a ti.......2004-03-19

programing section of manual is unclear. lots of program writen for ti, can't find any for the sharp. spend the extra bucks on the "standard" ti

Casio DR-T220 Desktop Calculator with Thermal Printer and Large Display

Average customer rating:

Good machine, Terrible instructions.

Casio DR-T220 Desktop Calculator with Thermal Printer and Large Display

Manufacturer: CASIO
ProductGroup: CE
Binding: Electronics

Printing | Calculators | Office Electronics | Categories | Electronics

Office Electronics | Refurbished & Used | Special Features | Electronics Features | Electronics

NCR Single-Ply Paper Rolls, Thermal, 2 1/4in. x 165ft., Pack Of 6

Product Features:

Quiet thermal printing, up to 8 lines per second
12-digit Digitron LED
Addition and subtraction by group
Powered by AC adapter
Memory printing feature

ASIN: B0002AU206

Product Description

DR-T220 1-Color Thermal Printing Calculator - Lines/Second Speed 8.0 - Display Type Digitron - Display Digits 12 - Digit Size 12mm - Memory 4-Key - Item Count - Time/Date Feature - Size 8-1/2w x 13-3/4d - Shpg. Wt. 5 lbs. - Manufacturer Warranty 1 Year - Roll Paper PMF05247 (sold separately) - Super fast, super quiet. Check calculation logic.

Amazon.com Product Description

The Casio DR-T220 calculator is a quiet one-color thermal printing model that fits well in busy offices. It has a 12-digit Digitron display and prints an impressive eight lines per second. In addition to the expected standard operations, the DR-T220 offers memory printing and includes an independent add register; you can also round results up or down to a selected decimal setting. It is AC-powered for desktop use, and the built-in thermal paper rolls fit snugly inside a plastic casing--no bulky arms taking up extra space.

What's in the Box
DR-T220, AC adapter, user's guide, thermal paper roll

Customer Reviews:

Good machine, Terrible instructions........2007-09-02

I ordered this machine because I wanted a large, bright display. My eyesight isn't what it used to be. And the display is great.
The manual, however, is awful. It is in many languages. The print is small and what it says is not very informative. It does show samples. If you are used to this type of machine, it is probably adequate, but I'm not.
I have been able to use it, but I haven't had the patience to learn all the things it can do.

Also they only include a tiny roll of paper.

Electronics:

Electronics

Electronics