This is read-only version of the old wiki, feel free to browse it for materials. If you want to share your own materials, please use GeoGebraTube instead. You are also welcome to help us enhance the new wiki. If any questions arise, please contact the webmaster. |

## Fourier Series

## Fourier series of Sawtooth Function

This is a sample Fourier series used to represent a sawtooth function.

The series was built using the Sum[] command together with the Sequence[] command. In addition, the series formula is presented as text using LaTeX.SEO DallasFLAS INFORMASI TEKNOLOGI kumpulan i

The .ggb file is was developed collaboratively on the GeoGebra forum: "How to Input Long Formulae (as Fourier terms)"

## Fourier series of arbitrary functions

This is an initial attempt at a Fourier series generator for arbitrary functions. Fourier series

To use this tool, enter your function named f(x) in the Input Bar at the bottom of the applet. For example,

- ... sawtooth function
- ... step function
- ... triangle function

The domain of the defining function is given by the interval [*x**a*,*x**b*], thus the period is *p* = *x**b* − *x**a*. We also define the wavenumber *k* = 2π / *p*.

Among the values displayed in the Algebra window are the lists "a" and "b", which are the coefficients of cosine and sine functions, respectively.