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Imagine the problems if this really worked. You might accidentally place your arm in one of the holes for 10 seconds and find your arm had aged 10 years. Alternatively you could leave a bottle in for 126 years and its resulting 4 billion year age would be greater than the Earth's.Get more detail about Vintage Express Aging Accelerator Rack " The Wine Rack of the Future" for Wine, Whisky, Scotch, Bourbon, Tequila or Any Other Liquor (AGES WINE 10 YEARS IN DAYS).

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Paid alot for the item for it to be shipped in a plastic wrap with bubble wrap around it in the inside. The calculator looks like it's been sitting on store shelves for awhile because the the packaging was a bent up. But the calculator itself has a couple of marks. Will not ship back because that's more frustrating and I am bedridden. But will not buy from amazon again. I think I've learned a learn with this site one too many times. Thanks, but no thanks.Get more detail about Peanuts SNOOPY - Woodstock CALCULATOR.

Buy Calculated Industries 8515 ProjectCalc

No pun intended!

For me this is a must. I am not one to be trying to calculate the center of some random fraction or figure out how much tile I need for a room.

Great stocking stuffer. He or she will be glad they have it in the toolbox even if only for those Sometimes moments.
Get more detail about Calculated Industries 8515 ProjectCalc.

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Watch Video Here: http://www.amazon.com/review/R97MKEQ63OE4M Though it looks great, some design issues and the fact that it won't snugly fit a 13.3" MacBook inevitably made me send it back to the store.Get more detail about STM BAGS STM DP17131 Small Brink Shldr Bag Char/Blk 13in - DP-1713-1.

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backlight does not work ,diet guide will not download . tried downloading from two seperate computers .will make a good toy for my 7 year old grandaughter .Get more detail about SHARP OZ-290HII 1.5MB Electronic Organizer.

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The Williams Pace calculator is an extremely useful tool. I was able to figure my distance kids splits very easily and quickly.Get more detail about Williams Pace Calculator.

Shop For Sharp EL-S50B Quiz Calculator 10-Digit with Punctuation/Math Drill Feature

My third grader does well with his times tables, but as any parent knows the goal is for times tables to be cemented in long term memeory. We have flash cards and even a rotating book, but he balked each time I brought them out. This calculator put the controls in his hands and he will voluntarly quiz himself each day. Fun and challenging and at his own pace, I am very happy with this product. Get more detail about Sharp EL-S50B Quiz Calculator 10-Digit with Punctuation/Math Drill Feature.

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If you need a printing calculator that's small size, get this one through ebay. It has a fast keyboard and runs and AA's and they last quite a while, I use it at work and after 3 months I am still on the same batteries. I have stopped using everything else because of the quality of the keypad.Get more detail about Texas Instruments TI-5006 Desktop Printing Calculator.

Financial Modeling for Engineers (aka ACP FINANCIAL MANAGEMENT 11th Ed) ISBN: 0324627807 and 9780324627800 Review

It's a nice book for people moving into finance. Yet I would suggest this book only if you have fundamental knowledge of accounting. This book overlooks many of the accounting basics. Moreover, I would suggest the similar book which is used in MBA studies because that book has more number of chapters and deals with many more interesting stuff in finance which are left out in this book.Get more detail about Financial Modeling for Engineers (aka ACP FINANCIAL MANAGEMENT 11th Ed) ISBN: 0324627807 and 9780324627800.

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This is a wonderful Calculater!
I baught this with my Gift Certifecete, and I love it!
It's very fast, holds twelve digits, and is very light for a printer calculater. It has all buisness buttons, tax, and has even has a triple zero 000 button.
I thought I didn't want it because it took about 7 or 8 weeks to
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Why did I think that I didn't want it?
Buy it, you'll love it!Get more detail about Canon P100-DH Desktop Calculator with Two Color Printer.

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I am blown away by this device. I first tried the free download from the Calculated Industries web site. ... It is a full blown version, without any restrictions, but stops working after 30 days. After about day 5 I knew I had to have it. By buying Construction Master Pro, instead of CM IV, you are getting a much better looking unit, with more features, a cover that mounts on the back while in use so as to not get in the way, and you are currently getting a free software version of Pro as well. All of that for only a couple more dollars than the IV version makes it a no brainer.
I am making cabinets, windows, and doors. In all of those, especially the windows, you need to do a lot of calculating in fractions. That makes the math work tedious at best. I was finding common denominators, then adding subtracting, dividing, multiplying, etc. Having to convert all along the way was a major amount of factoring. This calculator thinks in fractions as well as the standard arithmetic format. So you can insert, 8 1/8", and 3 13/64" for example, and it does all of the figuring for you. Convert your answer to board feet for material costs, is only a couple of buttons away. How many yards of concrete do I need to make the footers, no problem. I want to build an arch top doorway, and need to know the total amount of distance of the half circumference. No problem, just put in the rise at the center, and the run across the base, and it gives you every piece of information you could possibly need to know. This is just scratching the surface. This will be a tool that I will use for a long time to come. As I grow accustomed to its many capabilities, I will use it more and more, for a wide array of applications.
Could we call this calculus? It seems like it. When you watch the included CD that comes with the included calculator software version, you will see a video tutorial that explains a lot of the functions. Some are best understood by practitioners of that specific trade, but it makes me want to learn.
How much roofing material do I need? Just put in the pitch, and the floor space, and it calculates the amount of material. How many cubic yards of soil do I need to fill in the hill leading up to a wall? How many yards of concrete do I order for a patio. Determining hip and valley rafters. What is their length, and angle, and where do you put the bird mouth? Everything is calculated, and displayed in some applications as a sub chart with all of the finished answers in the software version. So it is nice to have both. Whether you are at your desk, or in the field, every option is covered.
I highly recommend the Construction Master Pro, I can't remember when I was more excited about a tool. I can't wait to use the calculator in ever expanding roles.
The price here at Amazon was 10 or 20 percent lower than the other sources, or at best the same price as others, and included free shipping. My advice, buy it, and buy it here. I warn you though that if you download the free trial version, you will be hooked after using it only a few times. Hope this helps.Get more detail about Calculated Industries 4060 Construction Master Pro.

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I purchased the CA2PK calculators thinking it would be a great deal! Wrong! It's a great deal if you only want the smaller handheld. The large, desktop model doesn't work efficiently. The keys keep sticking. When using it, I need to constantly watch what i input as the keys don't always register because another one is stuck. Spend the extra few dollars and get a better one. Good luck!Get more detail about Sentry Industries CA2PK 2 Pack Calculator.

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Had mine for over 3 years at work. Originaly bought several and gave out to friends. Used everyday but dropped on hard floor once too many times. Friend still using hers daily too. A little unique placement of a few of the keys that I got used to and now prefer. Had difficulty finding same key plaements. Got last one in stock..Will buy more if can find and hoard them for use years from now. Small size, dual power, larger han normal sized keys for a small handheld, silicone edging. Like it a lot...Get more detail about Senario RB-80 Dual Power Calculator.

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Product is just as advertised and has just the capabilites that I need. The price is right, as well.Casio FX300ES 2-Line Scientific CalculatorGet more detail about Scientific Calculator.

Desktop Calculator Buy Now

The keys are spongy. The zero key has to be pressed hard to work. Not recommended.Get more detail about Desktop Calculator.

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The calculator is good but the thing is when I press one button, the one next to it is somehow pressed too, so I never see on the screen what I have to see. Maybe it is just this particular one. I ended up using a TI-83 for my financial calculations. It is more complicated, but it works much better.Get more detail about Datexx DH-170FS EZ Financial Planner Calculator.

30S Scientific Calculator, 15 x 2 Line Display, Protective Case (HEWF1900A) Category: Scientific Financial and Graphing Calculators Decide Now

This calculator is the required calculator for University classes I have taken. It is NOT user-friendly and it is NOT intuitive at all. I would NEVER recommend it, and would never have bought it unless I was forced by the university. My prof used it once in a physics lab and made the telling comment "I see why you guys all complain about this calculator".Get more detail about 30S Scientific Calculator, 15 x 2 Line Display, Protective Case (HEWF1900A) Category: Scientific Financial and Graphing Calculators.

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I bought the Michigan State version of this product. This calculator looks great, but the most important thing about a calculator is that the keys work. Unfortunately, they don't always work. Therefore, I don't trust the product with my calculations. If you really want to use the calculator ... don't buy it.Get more detail about Collegiate Series 00514 LOUISIANA STATE UNIVERSITY Solar-Powered Calculator with School Logo and Colors.

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If you need a simple littler calculator that just works and is easy to read in low light, go to office depot and get this before they stop selling them. The display is huge and the buttons are all within reach of your thumb for one handed use. The back pops off with the removal of 6 screws for idiot proof battery replacement. It has stood up to light ran and drops on the ground. It a good little cheap calculator, I hope mine last a long time because I want one just like it when it inevitably brakes from the way I treat it..Get more detail about Office Depot 220 Pocket Calculator.

Low Price Texas Instruments BA Real Estate Financial Calculator

I've been a mortgage broker and user of 3 calulator for over 9 years. It is simple great! The other "reviewers" here that are whining about having to "hit the keys in the center" or their views about HP vs TI are babies and need to find a chat site where they can cry their woes with other losers.
Great product, buy it! Easy to use!Get more detail about Texas Instruments BA Real Estate Financial Calculator.

Save Casio Algebra FX 2.0 Graphing Calculator

I have owned top of the line graphing and scientific calculators from TI, HP, Casio, Sharp, etc. This machine, the Casio FX-2.0PLUS, continues the Casio quality tradition and is definitely put together very well. It is also a very good improvement over its predecessor, the Casio FX-2.0, with a very fine portable design and now with a CAS (Computer Algebra System). The pros and cons as I see it are:

PROS:

1) It has all the standard regular features and also is supplied with a full set of CAS features that we have come to expect on such a machine.

2) The machine itself is reasonably fast with a nice graphical interface and resultant plotting system. The resultant plots are high quality and with the many added features available for enhancement are very intuitive for the learning process.

3) It has a nice, but older style, body design that sits very nicely both on a desk or a table as well as in your hand.

4) It has a large amount of onboard main memory, plus additional Flash memory (See Con below) for tackling quite memory intensive problems.

5) Although it is called a calculator, it is really a small and fast handheld computer system which can tackle problems from the most simple to almost the most complex.

6) It has a very useful user interface system with multiple icons. The calculator functions are all controlled using an Algebraic Operating System (AOS).

CONS:

1) Some functions that you would readily expect to be available with a single key press on the main keyboard require instead multiple key presses, but usually with only a single shifted key press first.

2) Apparently the Flash memory is not extremely well made or of very high quality and can degrade significantly over a period of a couple of years time.
Get more detail about Casio Algebra FX 2.0 Graphing Calculator.

Cheapest VX2128R Portable Desktop/Handheld Calculator (SHRVX2128R) Category: Non-Printing

NO -- THAT'S NO TYPO IN THE TITLE! This really IS "the calculator of the future!"

I bought one years ago, and loved it! It is big, it isn't the most
easily handled calculator -- it's even a bit clunky. BUT....it has one PRICELESS FEATURE that I have yet to see in ANY other calculator. And that is....a "Resume" key. That means, if you have a LOT of calculations to do, and want to stop in the middle of them, this calculator will turn itself off, (like many other calculators)....BUT! But later on, when you want to go back to, (or "resume") your work, THIS CALCULATOR WILL TAKE YOU RIGHT BACK TO WHERE YOU LEFT OFF! There is NO going back and doing everything over again, as with any other calculator I have used.
This "resume" feature is wonderful for doing taxes, or endless "chain" calculations, as some math requires.

I see that this calculator is "currently unavailable" on Amazon -- but at least it is LISTED on Amazon, as it is nowhere else! (Thanks, Amazon!).
A new model, (with hopefully the same features), IS available from various sellers, (not Amazon, sadly), and LOOKS exactly the same as this model. The new model number is ALMOST exactly the same, too:
.
,,,,,,,,,,,,,,,This Model Number: VX2128R
,,,,,,,,,,,,,,,New Model Number: (R) VX-2128R
,
The new model, (as pictured, anyway), LOOKS exactly the same as the old model, except it's a bit brighter. It has the same colouring, but seems to just have, "a new coat of paint on it", as it were. The all-important "RESUME" key is on this new model, as well! Hopefully, this new model will be, and be as dependable, as the older one!

If you do a LOT of "chain" calculations, this is THE calculator for you!

I sure hope other calculators will have this "resume" feature, soon! But it's here now, courtesy of Sharp and Amazon, and the various sellers of the "new" model of this wonderous calculator! I hope the newer model is as good as this one is (was?)Get more detail about VX2128R Portable Desktop/Handheld Calculator (SHRVX2128R) Category: Non-Printing.

Cheap Collegiate Series 00505 UNIVERSITY OF ILLINOIS Solar-Powered Calculator with School Logo and Colors

This calculator looks great, but the most important thing about a calculator is that the keys work. Unfortunately, they don't always work. Therefore, I don't trust the product with my calculations. If you really want to use the calculator ... don't buy it.Get more detail about Collegiate Series 00505 UNIVERSITY OF ILLINOIS Solar-Powered Calculator with School Logo and Colors.

Buying Aurora DT318 Dual Power 8 Digit Patented Calculator

I had to return it because the "answer bar" did not work. Amazon has still not refunded my money.Get more detail about Aurora DT318 Dual Power 8 Digit Patented Calculator.

Buy Sparco 02191 Twelve Digit Desktop Calculator, 7"x6"x1 1/2" (SPR02191) Category: Basic Calculators

This calculator works as promised, but it is poorly made. Sometimes the buttons stick down, which causes big problems if you don't notice right away. It's a shame because the functions are good. We bought 3 and they are all the same.Get more detail about Sparco 02191 Twelve Digit Desktop Calculator, 7"x6"x1 1/2" (SPR02191) Category: Basic Calculators.

Purchase CNMLS716H - Calculator, Solar, Card Size, 8 Digit,3-1/2Wx2-1/8Dx1/3H

I got this for my wife who likes to keep a small calculator in her wallet. It's nice and thin, so it's perfect for our needs. This is the second one we bought, the first lasted about 2 years. If we can get 2 years out of this one I'd be happy, given the price and the amount of banging around it gets on a daily basis. It's nice that solar and does not need batteries either.Get more detail about CNMLS716H - Calculator, Solar, Card Size, 8 Digit,3-1/2Wx2-1/8Dx1/3H.

Order EL-531WBBK Scientific Calculator

Do not let the price fool you, this calculator
can do it all. Get more detail about EL-531WBBK Scientific Calculator.

Where To Buy Sharp EL-531VB Calculator

I have been using a version of this Sharp calculator from early high school all the way up thru a Master's degree in Electrical Engineering and now as a professional - it rocks! For science/engineering students, there is none better. It is simple and will do everything you need (almost - see below). Forget about those cumbersome, expensive graphing calculators. Save some money and buy one of these bad boys instead. Graphing calculators are a waste of time - learn how to do it on paper. This calculator deserves 5 stars, but I can only give it 4 because they took away the conversion functions for hexadecimal, octal, and binary numbers - essential for computer science & electrical engineering students. What the heck! Where can I still buy the EL-506? Mine finally broke...Get more detail about Sharp EL-531VB Calculator.

Shop For Datexx DS-883 889-Function Graphing Scientific Calculator

I bought this calculator for an algebra class before I realized my husband owned a TI-83. It does most of the same functions as the TI-83, but it is harder to use, and if your math instructor is teaching you functions using a TI calculator (which most likely they would) then it will do you little good and you will have to figure everything out on your own.Get more detail about Datexx DS-883 889-Function Graphing Scientific Calculator.

Calculated Industries Scale Master II w/PC Interface Kit

Good Product.
It was hard for me to use this regularly. I am a Ruler/Scale estimator. Once you leard how to operate the device, only your imagination will limit your use.
One point of improvement, You could provide a sample speadsheet program. This would give us a head start on utilizing the tool to the max.Get more detail about Calculated Industries Scale Master II w/PC Interface Kit.

Hello Kitty Calculator Review

It's a calculator:It's a clock:It's a calender:and it has a cover!!!!!
I like to take it grocery shopping with me:I put the prices of my groceries into memory and I NEVER go over-budget!!!
If you close the cover while in memory mode it will retain whatever is in memory so you cen shop hassel-free!!!
I LOVE this caculator!!!! Get more detail about Hello Kitty Calculator.

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I ordered this specific calculator because it's the same one I've been using - believe it or not - for around 15 years; since early high school! It's a great scientiific calculator, and the screen on mine finally started to go. I was pleased to find an identical one that was brand new factory sealed.Get more detail about Casio FX250HC Basic Scientific Calculator.

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Inexpensive and just the right size; display and buttons large enough for my "barely over 40" eyes, but still small enough to be handy.Get more detail about Aurora HC128 Dual Power Slide Case Style 8 Digit Hardcase Calculator.

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The TI-68 is a fine calculator. A search on Google of "TI-68" will bring up plenty of positive reviews.Get more detail about Texas Instruments TI-68 Battery Powered Advanced Scientific Calculator.

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Texas Instruments, Inc - TI-30XIIB - Texas Instruments TI-30XIIB Scientific Calculator Get it now!

Beware. If you try to enter a negative number and square it (hit the - number sign, enter a number like 3 and then hit the X2 button) it will show an answer of -9 (for my -3 squared example). It, obviously, should be positive 9. I called TI to report this bug and the lady said you have to put parenthesis around the - number and it works fine and it's not a bug. I'm a software developer, that is a bug (undocumented feature). It also seems to work if you do minus sign, 3, = and then x2. It's not intuitive, though.

The calculator seems to work otherwise and many in my daughter's class have this model. She brought me her homework and said it didn't look right. She was correct because the squares of the negatives were wrong!

My sharp scientific calculator calculates squares absolutely correctly.Get more detail about Texas Instruments, Inc - TI-30XIIB - Texas Instruments TI-30XIIB Scientific Calculator.

Casio FX-55X Solar Scientific Calculator Buy Now

This calculator is easy to use and had good button feel. It does fraction calculations (a great function for students under 5th grader who are just learning about fractions but don't know about decimals). It reduces fractions and also does division with remainders. My daughter uses it to check her math. It is a great little calculator. Also comes with a hard case - good for carrying in the backpack.Get more detail about Casio FX-55X Solar Scientific Calculator.

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This calculator($6.99) is:
1) Cheap
2) Power packed(3 mem variables, preset formulas)
3) Durable(cover is hard and does not have easy-to-break edges - very easy to slide)
4) Clear(large two line lcd display for a scientific calculator of this price, color-coded buttons to find the needed buttons more quickly)
5) Relatively attractive(silver finish and glossy top that surrounds the display)

I like this calculator so far since it cost me mere pocket change. Since I am a high school calculus student, I am not allowed to use a graphing calculator on any test. However, I am able to use scientific calculators. This scientific calculator, unlike many other generics, have certain features desirable for a student of mathematics. If you are out of school already, I would just use either software on the computer or one of the high quality graphing calculators.Get more detail about Canon F710 Dual-Line Scientific Calculator.

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This item worked about 2 months and then the printer broke. fancy looking junk! A total waste of money. Very disappointed! JimmyMac-clifton heights Pa.Get more detail about Aurora PR670M 12 Digit 2 Color Desktop Printing Calculator.

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A GREAT LITTLE MACHINE AT A GREAT LITTLE PRICE! This calculator, the Sharp Elsi Mate EL-243S lies f-l-a-t in your hand or on the table. This means that it can be put in pocket or purse...and take up VERY little room. It is VERY light in weight...and even comes with a protective plastic cover, to make it extra-safe from breakage whilst travelling!

Many calculators I have tried do NOT have CE (clear entry) key working with division or multiplication. That means, if you want to multiply, say 3 x 4, but mistakenly put in 3 x 2, you can press the CE key, and not have to re-enter the 3! (This is VERY helpful in more complicated calculations!) Usually, the CE key works just fine with addition and subtraction....but here, it works with multiplication and divisiion, too!

The keys are a nice, soft, responsive rubber. They rise only the smallest fraction of an inch from the keyboard base, but are still extremely easy to use!

The protective, hard-plastic cover contrasts nicely with the soft rubber keys, It securely fastens over the calculator, but should be easy for most people to open and close. (For those with manual dexterity problems, please note: if you have any problems opening and closing the cover -- after getting someone else to open and close it several times, it should be easier to open and close yourself!

The numbers on this calculator are very LARGE, considering its size. They are also quite LONG and THIN! This might help me -- and anyone else who uses this calculator -- to help lose weight! Because, after using the Sharp Elsi Mate EL-243S for a week or so, when one goes back to most other calculators, the numbers on these others look stocky and stubby!
The elegant, long, large and thin numbers of the ElsiMate EL-2435 look almsot ARISTOCRATIC by comparison! A real weight-losing catalyst!

This calculator is also SO small, SO unobtrusive, SO handy, that I'd
also call it, 'my "007" calculator'. Because -- with everything else he must carry -- James Bond would hardly have room for any other calculator!
(Unless, of course, his would be specially outfitted to fire bullets and/or dispense poison!) In any event, the fold-over case can hide a secret message or two! (Or even a to-do list -- for James Bond, or anyone else!)

all in all, a fine, rugged, easy-to-use little basic calculator! With a fold-over case, which can be used as a. "secret compartment"!Get more detail about SHREL243SB - EL243 Solar Pocket Calculator.

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I am very pleased with my purchase. It was my first time to buy anything from Amazon so I was a little aprehensive. I am pleased I did. I got a great price and it was shipped very fast. Thank you!Get more detail about HP HP39G Algebraic Graphing Calculator.

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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..