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Casio FX-991ES Plus Scientific Calculato...
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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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rating
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
rating
Great calculator, it fits for the academic use.
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 ...Read more

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
BrandCasio
ModelFX-991ES Plus
MPN FX991ESPLUSSAUH
UPC4971850182276

Key Features
TypeScientific
Power SourceBattery/Solar
SizeHandheld
Display TypeLarge
Key SizeRegular

eBay Product ID: EPID92844524
eBay users' reviews
Casio FX-991ES Plus Scientific Calculator
  • Average rating:
    Based on 33 user reviews
  • Rating distributions

  • 5 stars29
  • 4 stars3
  • 3 stars0
  • 2 stars0
  • 1 star1
Recommendations to buy
96% of customers recommend this product
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All Reviews

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.
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Great calculator, it fits for the academic use.

 | Yes, I would recommend this product to a friend.
Created: 08/10/11
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.
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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.
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I use its but it is new for me. I want to use it proficiency

 | Yes, I would recommend this product to a friend.
Created: 29/10/13
Casio FX-991ES Plus Scientific Calculator is best item. I use its in my job. I like this kind of Calc.
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Excellence and Simplicity

 | Yes, I would recommend this product to a friend.
Created: 01/06/12
Apart from having arrived in good condition, meets the requirements of a scientific calculator, and analytical load, easy handling,
The handbook is to aid quick access.
Ideal for student or professional level.
Quality level of Casio
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