To enter a function you can use previously defined variables (e. g. numbers, points, vectors) as well as other functions.
Examples:
· Function f: f(x) = 3 x^3 – x^2
· Function g: g(x) = tan(f(x))
· Nameless function: sin(3 x) + tan(x)
Note: All available pre-defined functions (e. g. sin, cos, tan) are described in section Pre-defined Functions and Operations.
In GeoGebra you can also use commands to get for example, the Integral and Derivative of a function.
Note: You can also use the commands f'(x) or f''(x),… in order to get the derivatives of a previously defined function f(x).
Example: Define function f as f(x)
= 3 x^3 – x^2. Then, you can type in
g(x) = cos(f' (x + 2)) in order to get
function g.
Furthermore, functions can be translated by a vector (see
command Translate)
and a free function
can be moved with the mouse by using tool Move.
In order to limit a function to an interval [a, b], you can use the command Function.