Fourrier Series.m with rerspect to fourier equaton fundamentels , i simplified equation and coded all mathematical procedure to find fourier coefficents of any signal or equation Fouriertransform.m it is basically like series calculation but here , signals orr equations are converting in time domain to frequency domain squarre_wave_crreator.m square wave creator is discrete signal in time domain after we created this signal . with Fouriertransform we arre converting this time domain square wave signal in to frequency domain signal