Literature Fourier

1. Discrete Fourier transformacion

1.1. Transform an ecuation in toher

2. Inverse Fourier transform

2.1. Is calculate usin basic ecuations

3. Overview

3.1. Fourier Series

3.2. Fourier Transform

4. Two Algorithms

4.1. Decimation in time "Dit"

4.2. Decimation in frecuencie "Dif"

5. Fast Fourier transform

5.1. allows to calculate DFT and its inverse

5.2. The fft with great importance