# Fourier Transformation and Laplace Transformation

In
Data Science
, Fourier transformation is used in
Spectrum Analysis.
It is used to change the data.

The other use of Fourier transformation may not be data science.
It is used to use function of phenomena easily.

##
Fourier Series

Fourier series is used to change the data set into the data set of the size of frequency.

We can use this chage by RapidMiner and Excel.

##
Fourier Transformation and Laplace Transformation

Fourier Transformation and Laplace Transformation
is used to change difficult function into easy function.

After the change, it becomes easy to solve differential equation easier.

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