[list][*]calculate exact or approximation values of an expression, like [math]\frac{2}{3}+\frac{5}{6}[/math][/*][*]solve equations or system of equations and check your solution from graph window[/*][*]solve equations step by step[br][/*][*]use Geogebra like a function or graphical calculator[/*][*]define functions with parameters[/*][*]calculate derivate or integral of an function[br][/*][*]substitude values for parameters[br][/*][*]factor expression or expand brackets[br][/*][*]solve ode[br][/*][/list]