Matlab coding.... help.?

Can some one tell me the full coding to obtain and plot the wave form from the fourier coefficients of the wave using Matlab.Matlab coding.... help.?
if u have





t=1:2:1000





S =10sin30t





plot(S)





Fs=fft(S,512)





plot(Fs)








so if u have any signal it will be stored in vector on the matlab .. like .. X= 155x1 matrix size





just convert the X by





Xftt= fft(X)


or


Xfft2=ffft2(X)


plot(Xfft)


pause


plot (Xfft)








and anything u want u can use matlab help it is v cool








i wish i could help uMatlab coding.... help.?
Yes, however this is not a forum for such a question.
Try





help fft





and





help stem





Also, see document below.

oil production

cream

medicine cream

motorcycle oil