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
Data safety
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