Casio fx-991MS Scientific Calculator – 401 Functions

The Casio fx-991MS is a versatile scientific calculator designed for students, teachers, engineers, and technical users. It features a 2-line display and 401 functions, supporting advanced mathematical calculations including matrix and vector calculations.

Key Features:

• 401 built-in functions
• 2-line display for easy viewing
• Matrix & vector calculations
• Scientific and engineering calculations
• Dual-power operation
• Ideal for school, college, and professional use
• Compact and easy-to-carry design