452 functions
Natural Textbook 2-line Display
Remainder calculations
GCD / LCM
Inequality calculations
Ratio calculations
Prime factorisation
Solve functions & Evaluate expressions
Integration & Differentiation
Sigma calculations
40 scientific constants & 40 metric conversions
Q1, Med, Q3 calculations in statistics
TP of Quadratic equation
Statistics MODE – Data handling and Regression analysis
Dual Table MODE (2 functions)
Complex number, Base-n, Equation, Matrix & Vector MODES
Distribution Calculation MODE

What's in the box
1 xCasio FX-991ZA Plus II Advanced Scientific Calculator & Product Manual