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Casio FX-991ES Plus Scientific Calculator
Tolbhav (33370)
99.3% positive feedback
Price:
C $49.55
Free shipping
Returns:
30 days return. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
Condition:
- Buy It NowCasio FX-991ES Plus Scientific Calculator Fx 991 Es + FX991ES New CE Logo Sealed
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About this product
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
MPNFX991MS/ES
UPC4971850182276
ModelFX-991ES Plus
eBay Product ID (ePID)92844524
Product Key Features
Power SourceBattery/Solar
SizeHandheld
Key SizeRegular
TypeScientific
Additional Product Features
Display TypeLarge
All listings for this product
Ratings and Reviews
Most relevant reviews
- May 18, 2020
Equation Solver
I bought the Casio FX-991 ES. Fantastic for using Newton's law of approximation to solve equations like sinδ = a + bcos(δ + β) (a, b, β constants). Just substitute the ANS key for δ in the equation and keep hitting the "=" button till the answer doesn't change (converges).Verified purchase: YesCondition: New
- Sep 05, 2018
Best Simple Display Calculator I've Used
Best non graphing calculator for engineering courses I've used. Best part is being able to plug in human readable fractions.Verified purchase: YesCondition: New
- Jan 28, 2017
Precise with great features
I'm a student and this calculator helps me a lot to accomplish the math exercises required by class. Many functions are included, more than I will need actually but I loved the design, the big screen, the price and the ease of use.Verified purchase: YesCondition: New
- Sep 29, 2020
Great for Digital Systems Design
I recommend this model for CS studies and Electrical Engineering. It's real easy to calculate in non decimal base: base 2 8 and 16 and to convert it back to decimal. I think there are calculator models with a more robust screen. I guess that's why it's relatively cheapVerified purchase: YesCondition: New
- Dec 05, 2017
Silver star
Having the same type of calculator for last 15 years. This one is something like third generation, in my caseVerified purchase: YesCondition: New
- Dec 17, 2016
Outstanding value for money
It is probably the best scientific calculator in its category (scientific without graphing or Cas capabilities). It is able to do pretty much everything a student or an engineer needs (complex numbers,polynomials,3x3 vectors and systems,definite integrals,trigonometry and simple variable calculations) with very easy to use interface and no overcomplicated combinations.Verified purchase: YesCondition: New
- Oct 12, 2021
Buy this!
I had gotten the same kind for my older kiddo so felt comfortable getting it for the younger. They both love them and use them constantly In school. Excellent quality and price!Verified purchase: YesCondition: New
- Mar 06, 2022
buy it won't regret it
Lots of useful fonctions old model we can't find anymore, newer are hopless/helpless ... Thanks i could find this one ... bless recommendedVerified purchase: YesCondition: New
- Feb 15, 2018
Great math assistant
Great calculator with many features extremely useful in math. Would recommend to everyone!Verified purchase: YesCondition: New
- Oct 15, 2019
Good
I got the product in time and the product quality is also very goodVerified purchase: YesCondition: New
