说明：  This script calculate the Fourier transform of a Rectangular window of 64 points using an aproximation with a DFT of 1024 points,as well as calculates for differents values of f0 and f1 the module of the frecuency response of the windowed signal. All of this is for "look" the windowed effect. Sorry my bad English. comments or any suggestion vjgonzalezg@gmail.com