Casio FX-991EX Advanced Scientific Calculator, High Resolution Screen, Black

great calculator for fundamental engineering exam. It gives answers by pressing just a few buttons. It is much less than TI calculators. Highly recommended

I bought this calculator from Walmart. It is so beautiful and on the other hand very easy to use. I recommend it if you hate math buy one of them to be fall in love.

The calculator works well and came quickly. It arrived in a protective package, which ensured it was safe in shipping.

Geometry Honors teacher said that this is the best calculator! We bought it and he was correct it is so worth the price!

It has an affordable price and the functions of the product allow me use advance functions for math and statistics

It,s great in this price range.

The screen is really nice and easy to read, probably about the best I've seen without a backlight. I've used it in some pretty dim lighting and didn't have to strain to read the screen. The buttons are quite sensitive and I have to be careful not to accidentally enter things. If you just brush the keys they will often times be activated, so I think the keys could definitely be improved upon, but it's a minor gripe. My only other gripes are that you can't easily see the results of previous calculations like you can on TI calculators. I don't mind the fact that there is no power-off memory, but I really like to be able to see a scrollable 'stack' of calculations as I work something out. You can kinda get this by changing the math I/O setting, but it tends to disappear once you go back to reenter something. I also personally prefer some things to have dedicated buttons, like pi, which is shifted on this calculator. But overall it's been a great calculator at a great price.

I have a Casio scientific calculator I purchased for college and it has served me well for more than 25 years. This one is a little too busy for average mathematical use.

This is a great tool for checking your answers in a variety of math subjects. Took a star off because it was previously opened

Received what I ordered within a respectable timeframe at a reasonable price.