CASIO FX-991ES Plus 2nd Edition Scientific Calculator

Advanced Scientific Calculator

The CASIO FX-991ES Plus 2nd Edition is an advanced scientific calculator featuring 417 built-in functions, making it ideal for students, engineers, and professionals handling mathematics, science, statistics, and engineering calculations.

Natural Textbook Display

The Natural-V.P.A.M. display shows mathematical expressions such as fractions, roots, and equations exactly as they appear in textbooks, making calculations easier to read and understand.

Solar & Battery Powered

Designed with dual power, the calculator automatically uses solar energy in bright conditions and switches to battery power when needed, ensuring reliable operation anywhere.

Wide Range of Mathematical Functions

Supports calculations including fractions, matrices, vectors, complex numbers, simultaneous equations, statistics, numerical integration, differentiation, and equation solving, making it suitable for secondary school and university studies.

Durable & Easy to Use

Its compact design includes a high-resolution display, responsive keyboard, protective slide-on hard case, and memory buffer that preserves entered data during fast operation.

Key Features

• 417 Built-in Functions
• Natural Textbook Display
• Dual Power (Solar & Battery)
• Matrix Calculations
• Vector Calculations
• Complex Number Calculations
• Equation Solver
• Numerical Integration
• Numerical Differentiation
• Statistical Calculations
• High-Resolution Display
• Multi-Replay Function
• Protective Slide Case
• Non-Programmable
• Exam Approved