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Easily compute the most complex of mathematical problems, equations, and scientific formulae with the Casio FX-991ES Plus scientific calculator. The Casio 991ES calculator wor...Read more
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Easy to Use
I bought this calculator because it was the best allowed for use on my exams (best in terms of its features and capablities). The "pretty print" font feature is gre...Read more
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Product description
| Product Information | |
| Easily compute the most complex of mathematical problems, equations, and scientific formulae with the Casio FX-991ES Plus scientific calculator. The Casio 991ES calculator works with a dual power source, the primary being a built-in solar power cell that keeps it running for hours without any batteries. Moreover, with batteries installed, you can safely use it for weeks together without worrying of replacing them. You can practice all sorts of mathematical problems that appear at the GCSE, A Levels and above, with this Casio FX-991ES Plus scientific calculator. The Casio 991ES calculator resolves complex calculations, integrations, and logarithms in just a few steps. | |
| Product Identifiers | |
| Brand | Casio |
| Model | FX-991ES Plus |
| UPC | 4971850182276 |
| Key Features | |
| Type | Business/Scientific |
| Power Source | Battery / Solar |
| Size | Handheld |
| Display Type | Large |
| Key Size | Regular |
eBay Product ID: EPID92844524
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Easy to Use
Created: 15/03/11
I bought this calculator because it was the best allowed for use on my exams (best in terms of its features and capablities). The "pretty print" font feature is great too. It can even perform integration and differentiation of a function at a specific value of the independent variable (or over a specified nonvariable range. Unfortunately, it can't produce the function that is the derivative, etc. of a given function like the TI89 (but then if it could it probably wouldn't be allowed on your exam anyhow). Anyway, this thing is pretty decent for calculus and physics - for stats, use a TI83 instead if you can. It is more than adaquate for business types and decent for science students too assuming your professor is against more advanced models. Engineers already know they'll be needing a bit more power. Hope this helps you make an informed purchase decision.
Thank you for voting. If your vote meets our Great calculator, it fits for the academic use.
| Yes, I would recommend this product to a friend.
Created: 08/10/11
by:
Once i needed a scientific calculator that were not programmable, this one did solve my problems. Easy to work with, you barely have to read the manual to start using some of its functions.
Although, some functions are limited like the size of the matrix you can write or the degree of the polynomial. It is an awsome calculator for academic problems. For work or research problems, its limitations might become a pain in the neck.
Although, some functions are limited like the size of the matrix you can write or the degree of the polynomial. It is an awsome calculator for academic problems. For work or research problems, its limitations might become a pain in the neck.
Just what I wanted
| Yes, I would recommend this product to a friend.
Created: 05/03/12
) A good scientific calculator. Excellent for school and at home. User friendly and easy to use. Always used Casio Calculators.
Great functions low price
| Yes, I would recommend this product to a friend.
Created: 06/04/12
) The Casio 991es-plus, have great functions that help me in my graduation course, the natural v.p.a.m is an easy way to read the results and the price is not expensive.
The best
| Yes, I would recommend this product to a friend.
Created: 15/03/12
A good scientific calculator. The best non-graphical calculator and excellent for engineering courses.
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