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The Casio 991EX Scientific Calculator is a reliable and efficient tool for solving complex math problems. Its advanced features, such as multi-replay function and 4-line display, allow for easy and accurate calculations. With over 550 functions and a high-speed processor, this calculator is a must-have for students and professionals alike.
Basic functions
Basic Mathematical Functions
Number of Functions : 552
Independent Key x
Absolute Value Calculation
Power Function (Square)
Power Function (Cube)
Power Function
Power Function (Square Root)
Trigonometric Function
Inverse Trigonometric Function
Hyperbolic / Inverse Hyperbolic Function
Exponential Calculation
Logarithmic Calculation
Log not base 10
Coordinate Conversion
Combination / Permutation
Prime Factorization
Random Number Generation
Random Integer Generation
Summation
Other functions
Spreadsheet
Equation
Inequality Calculations
Physics- and chemistry-related functions
Scientific Constants
Metric conversion function