Date: 2013-09-21 12:15:06 +0000 (Sat, 21 Sep 2013)
The Goertzel algorithm implementation now is correct after verifying it
using the "fft" and "goertzel" commands in MATLAB. Both the C implementation
and the MATLAB code now give exactly the same results.
The previous implementation had a phase problem so the phase was wrong but
the magnitude was correct.
The class documentation has also been improved.
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