[Scipy-tickets] [SciPy] #1212: Single precision FFT insufficiently accurate.

SciPy Trac scipy-tickets@scipy....
Sun Jun 27 05:41:26 CDT 2010


#1212: Single precision FFT insufficiently accurate.
---------------------------+------------------------------------------------
 Reporter:  rgommers       |       Owner:  somebody
     Type:  defect         |      Status:  new     
 Priority:  normal         |   Milestone:  0.8.0   
Component:  scipy.fftpack  |     Version:  0.7.0   
 Keywords:                 |  
---------------------------+------------------------------------------------
 For some input sizes (factoring into large prime numbers) the accuracy of
 single precision fft is not good enough. For details see
 http://thread.gmane.org/gmane.comp.python.scientific.devel/13834.

 In the 0.8.x branch the problem is circumvented by switching to double
 precision except for sizes that are composites of factors 2, 3 or 5.

-- 
Ticket URL: <http://projects.scipy.org/scipy/ticket/1212>
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