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Commits on Jan 31, 2011
  1. @pv

    BUG: fftpack: more robust data overwrite behavior

    pv authored
    Some routines in fftpack used an invalid way to determine if data can be
    overwritten, which fails e.g. for non-ndarray objects providing an array
    interface but no __array__ method.
    
    Also make tests checking the fft routine behavior stricter.
  2. @pv

    BUG: fftpack: fix data overwriting in FFT routines (#1353)

    pv authored
    The _fix_shape helper routine in some cases returns slices of the input
    array, which does not create copies. In those cases, one should not set
    overwrite_x=1.
Commits on Sep 26, 2010
  1. @pv

    BUG: fftpack: use single-precision FFT implementation only for "easy"…

    pv authored
    … sizes
    
    For large "difficult" sizes, the current single precision implementation
    apparently falls back to a non-optimal algorithm, and can produce large
    rounding errors. (bug #1212)
    
    This commit provides a work-around, by enabling the single-precision
    algorithms only for sizes that are composite numbers of 2, 3, and 5, for
    which FFTPACK has explicit support. This is probably a rather
    conservative approach.
    
    (cherry picked from r6570)
Commits on Sep 12, 2010
  1. @pv
Commits on Dec 30, 2008
  1. @pv

    Merge from doc wiki

    pv authored
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