3838/CH2/EX2.1.C/Ex2_1_c.sce


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//example 2.1.c
//check the signal is periodic or not
clc ;
t =-15:0.01:15;
y =exp(-(2*%i*%pi*t)/7);
plot(t,y);
disp ( 'Plot  shows that given signal is  periodic with periodicity=7' ) ;