fc-991ES Plus Second Edition Scientific Multifunction Calculator Black

• Redesigned ES PLUS series calculators with 417 functions and an easy-to-understand, natural textbook display. • The design is stylish and has a protective cover to better protect the calculator from damage. The buttons are fast and sensitive for quick calculations. • This calculator can calculate basic trigonometric and statistical functions, as well as more functions, integral exponents, etc. • Color-coded keyboard for easy differentiation, keystrokes are stored in a buffer so nothing is lost even during high-speed typing, simple and easy to use, and comes with a new hard-shell slide for even more convenience • Solar power is provided when there is sufficient light, and battery power is provided when there is insufficient light.