I choose y(t)=cos(t) as my continous signal. There is no doubt that y(t)=cos(t) is periodic because cos(t + T) = cos(t) where its fundamental period is 2*π First I sample the signal y(t)=cos(t) at 1000 Hz and so we get the following discrete signal which is periodic
File:C:\Users\MONIL\Desktop\periodic ECE301Fall2008mboutin.jpg
