Functions of x

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 mode_move_16 Move.

Limit Function to Interval

In order to limit a function to an interval [a, b], you can use the command Function.


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