[NumPy-Tickets] [NumPy] #1531: Documentation fix for routines.fft

NumPy Trac numpy-tickets@scipy....
Wed Jun 30 07:27:30 CDT 2010


#1531: Documentation fix for routines.fft
------------------------+---------------------------------------------------
 Reporter:  valhallasw  |       Owner:  somebody
     Type:  defect      |      Status:  new     
 Priority:  normal      |   Milestone:  2.0.0   
Component:  numpy.fft   |     Version:          
 Keywords:              |  
------------------------+---------------------------------------------------
 http://docs.scipy.org/doc/numpy/reference/routines.fft.html reads:


 {{{
 If A = fft(a, n), then A[0] contains the zero-frequency term (the mean of
 the signal), which is always purely real for real inputs.
 }}}

 This is, however, incorrect. A[0] contains the zero-frequency term
 ''multiplied by the number of data points''.

 The same error is in more docs, for example
 http://docs.scipy.org/doc/numpy/reference/generated/numpy.fft.rfft.html#numpy.fft.rfft.

-- 
Ticket URL: <http://projects.scipy.org/numpy/ticket/1531>
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