2.linear algebra, calculus, complex numbers, display result in rectangular and polar coordinates, matrix and vector.
3.equation solver can solve quadratic, cubic equations, systems of equations.
4.support undo, history, copy/paste
Random integers Fraction calculations Combination and permutation Statistics (List-based STAT data editor, standard deviation, regression analysis) 9 variables Table function Equation calculations Integration/differential calculations Matrix calculations Vector calculations Complex number calculations CALC function SOLVE function Base-n calculation