• Raymond Toy's avatar
    Add simpler interface and define package · 284a108b
    Raymond Toy authored
    Put everything in the FFTPACK51 package.
    Define a simpler interface for computing the real FFT.  And provide a
    function for converting the output of rfft1f to a more obvious complex
    result.  This also removes some of the inconsistent, non-obvious,
    scaling done in rfft1f.