On Mon, 20 Jun 2011 12:30:39 -0700, garyr wrote: [clip] > I posted a reply with my test code as an attachment but apparently it > wasn't accepted, which is just as well. Now I begin to understand; I > should have checked the type of arrays returned by the two functions. Or checked this: http://docs.scipy.org/doc/scipy/reference/generated/scipy.fftpack.rfft.html