Can any one tell me how to do fft of rising falling and envelope function of cosine wave in matlab?

06 June 2016 1 7K Report

i want to do fast fourier transformation in matlab of rising falling and envelope functions pulse on single graph.Could anyone tell me how to write matlab program.

Khalid Al-Hussaini

As you know the 'hold' function is part of how to do it.

For example

clear; clc;

t = -pi : .1 : pi;

x = sin(t);

y = cos(t);

plot(t,x,'color','r'); hold on;

plot(t,y,'color','b');

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