TLDR Review: Casio FX-991ES Plus Calculator
Published: March 18th, 2025
Pros
- •Offers 417 functions, making it versatile and suitable for various scientific and engineering calculations.
- •Equipped with a Natural Textbook Display, which makes equations and expressions easier to read and understand.
- •Powered by both solar energy and battery, ensuring reliability in different lighting conditions.
- •Lightweight and compact at 95 grams, making it extremely portable for students and professionals.
- •Comes with a slidn hard case, offering additional protection when not in use.
Cons
- •The calculator does not support graphing functions, which may be a limitation for users requiring graphical analyses.
- •Some users may find the initial learning curve steep due to the extensive range of functions.
Bottom Line
The Casio FX-991ES Plus-2nd Edition Scientific Calculator is a powerful tool equipped with a wide array of functions, a user-friendly display, and a hybrid power source, making it ideal for scientific and engineering tasks. It's a solid choice for those who need a reliable and portable calculator without graphing capabilities.
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