Casio Calculator Fx-991Es Plus 2Nd Edition

The Casio Fx-991Es Plus Is A Versatile Scientific Calculator Designed For Various Applications, Including Education And Professional Use. Dual Power Source: Operates Using Both Solar And Battery Power, Ensuring Reliability In Different Lighting Conditions.
15-Digit Display: Provides High Precision For Complex Calculations.
417 Built-In Functions: Includes Algebra, Calculus, Statistics, And Engineering Calculations.
User-Friendly Design: Features A Responsive Keypad And A Compact Size For Easy Transport.