Product ReviewsCasio FX991EX Classwiz Scientific Calculator

Great Value!!! Thankful Wallet!!! Kids are sooo happy with their calculator

Great value!!! wrappers were in really bad shape but calculators were perfect.... just as intended to take advantage of a comfortable discount!!! Thankyou for thinking of our wallet!!!

Verified purchase:  Yes | Condition: pre-owned | Sold by: mbparts

Too fancy-schmancy for everyday use

One of the keys on my trusty old fx-260 had become erratic (it's over 20 years old, so I can't complain) and I decided to upgrade to the state-of-the-art fx-991ex. Unfortunately, I don't like it. First, my minor gripes: (1) It's too big; I love the pocketable size of the fx-260; (2) the keys feel like chiclets and make a rattling sound when pressed; (3) the mottled surface texture makes the alternate key labels hard to read, especially the blue ones - practically impossible except in very bright light - what were they thinking? (4) The slide-on cover is too loose-fitting, slips off by itself. But more importantly, (5) I find that I don't like its main attraction, the V.P.A.M. entry method. The display is pretty and I like how the entered formula remains on display together with the answer - but it's cumbersome: expressions used in everyday math and science require more clicks than with the "immediate entry" method. And the whole menu system - who uses a calculator for spreadsheets or matrix calculations? Come on. -- The fx-991ex is a very cool calculator and I'm keeping it to show off to family and friends, but I got myself a replacement fx-260 for everyday use. (Secretely, I want a SwissMicro dm42, but they're just too expensive.)Read full review...

Verified purchase:  Yes | Condition: pre-owned | Sold by: 77whitetail77

"best features in a scientific calculator"

I bought this calculator because it has variable memories, which means you can save values for letters A, B, C, D, E, and F into the calculator to use later on. I was having trouble memorizing a certain constant, so I saved it in my calculator. It also comes with lots of constants pre-programmed. I also love that i can go back and edit formulas after i get an answer. Also, the QR code generator is fun!Read full review...

Verified purchase:  Yes | Condition: new | Sold by: targetpcinc

I would recommend it to anyone looking to get a functional calculator for engineering.

It is very easy to use, so many useful functions that make calculations easier than ever. I am glad I opted for this upgrade.

Excelent product, very thankful

I recieve very fast and on excelent conditions

Verified purchase:  Yes | Condition: new | Sold by: mitcabram_0

New classic

This is Casios best scientific (non graphing) calculator and is faster than competing devices from Sharp and Ti. It really hasn’t changed in several years now as this segment of about fully mature.

Verified purchase:  Yes | Condition: pre-owned | Sold by: rgforfun

I love this calculator!

So much better than the Casio fx 260 I've had for years.
I love this calculator for the price.

Verified purchase:  Yes | Condition: new | Sold by: thehoneyroasted...

Highly recommended

The best investment I ever made, the best in market. It doesn't matter what kind of test it's approved.

Verified purchase:  Yes | Condition: new | Sold by: yidiantongljf

Excellent 4 students

It is an excellent tool for students. It will make your life easier .

Verified purchase:  Yes | Condition: new | Sold by: patch_590719

Casio Fx-991ex

It’s an excellent product, has a great presentation and incredible price.

Verified purchase:  Yes | Condition: pre-owned | Sold by: prestigious_pic...