Casio fx-991ES Plus, 2nd Generation

Designed for both students and professionals, the Casio FX-991ES PLUS 2 Natural Express Scientific Calculator will help you solve complex math problems. Practical and functional, this calculator comes with 460 different functions and 20 pairs of values for metric conversion so you can take on a range of mathematics, scientific and engineering equations and calculations. It also has a temporary formula memory so you can review your work. The natural textbook display is easy to read so you can get the numbers you need with just a glance.

• Features a dot matrix, natural textbook display for easy reading
• Includes a CALC key for temporary formula memory
• Includes 460 different functions to help solve a range of math, science, and engineering problems
• Features a solution of equations function, and calculation with complex numbers function
• Has 20 pairs of values for metric conversion
• Includes 40 physical constants
• Has a matrix/vector calculation function and an added REF/RREF matrix function
• Includes numerical integral and differential calculus functions as well as solve ratio and derivative in equations keys
• Dual sun and battery power operation for easy use
• Slide-on hard case for durability and protection