TEST/diff_coef.c File Reference

Compare two sets of coefficients. More...

#include "../libftsh.h"

Functions
int	main (int argc, char *argv[])

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Detailed Description

Compare two sets of coefficients.

This program compares two sets of coefficients as used in a spherical harmonic transform. It outputs the \(L^2\) error between them

For instance we can compare initial coefficients with the result after a synthesis and an analysis.

Usage: call this routine with 3 command-line arguments: band_limit coef_file_1 coef_file_2

• band_limit -- The restriction on the degree of the expansion (n in \(P^m_n\) notation).
• coef_file_1 -- the file from which to read the first set of coefficients. We read band_limit*band_limit REALs.
• coef_file_2 -- the file from which to read the second set of coefficients. We read band_limit*band_limit REALs.