hi ys = randn(64) Yf = fftpack.fft(ys,128) why Yf.shape=64,128? but in matlab the size is 128 X1 , Yf = fft(ys,128) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.scipy.org/pipermail/scipy-user/attachments/20080516/7b65e0e4/attachment.html>