Chapter 13 Fourier Integral Question


MPD78
11-29-2010, 10:01 AM
Hello all,

In the field of mechanical vibrations;

If you are asked to calculate the Fourier coefficients of equally spaced data, what is the "best" NR routine to use?

Thanks
Matt

ichbin
12-01-2010, 03:34 AM
There aren't any choices! The only FT routine defined in NR is four1, in section 12.1.

Note that the algorithmm used requires that the length of the data be a power of 2. NR simply doesn't support other lengths.