Summary:
Casio fx-991ES PLUS-2nd Edition
Casio fx-991es Plus II Scientific Calculator is a Non-Programmable calculator. Redesigned ES PLUS series that comes along with an easier understanding of Natural Textbook Display. The calculator comes with a dot matrix display. It can be run with both solar energy and a power battery source. The natural textbook format helps to understand the textbook problems and also, they show the solutions in a bookish format which is easy to understand. It comes in three colors: Black, Blue & Pink.

About the product:
– 417 functions.
– Good calculation speed.
– Almost every mathematical calculation is possible.
– Contrast and brightness control.
– Calculation with complex numbers.
– Basic trigonometrical and statistics functions along with other functions.
– Color-coded keypad for easy key differentiation.
– Comes with a new slide-on hard case.
– Two-way power.

Features:
1. Easy to use:
Optimal education tools are used for educative purposes that emphasize comfort in the hand, readability, and usability. The color-coded keypad will help to differentiate the keys.
2. Multi-replay:
This calculator can have a quick and easy recall of previously executed formulas for editing and re-execution. So, remembering them and doing them is not necessary.
3. Quality:
Top quality and authentication assure reliance for use in educational contexts. This brand has three special quality which make it special than others. They are wear-resistant printing, drop-resistant body, and environmentally friendly.
4. Authenticity Check:
Every packet has its unique QR code and a hologram sticker through which its authenticity can be checked. After buying, one can easily check its status by scanning the QR code.
5. Natural textbook display:
A natural textbook display displays equations and computation results like the way they appear in textbooks. This facility makes it easy to know about any problem and solve it easily.
6. Premium content:
A variety of content is available to make mathematics learning more fun. By registering the authentication check, users can obtain this content.