NAME

max_rel_matrix_difference - Returns the max relative difference between two matrices

SYNOPSIS

#include "m/m_mat_metric.h"

Example compile flags (system dependent):
  -DLINUX_X86_64 -DLINUX_X86_64_OPTERON  -DGNU_COMPILER 
   -I/home/kobus/include
   -L/home/kobus/misc/load/linux_x86_64_opteron -L/usr/lib/x86_64-linux-gnu
  -lKJB                               -lfftw3  -lgsl -lgslcblas -ljpeg  -lSVM -lstdc++                    -lpthread -lSLATEC -lg2c    -lacml -lacml_mv -lblas -lg2c      -lncursesw 


double max_rel_matrix_difference
(
	const Matrix *first_mp,
	const Matrix *second_mp
);

DESCRIPTION

This routine calculates the maximum of 2 * | M(i,j) - N(i,j) | / |M(i,j)| + |N(i,j)| for two dimension compatable matrices. If 2 elements are zero, their relative difference is considered 0. To support test program, if both matrices are NULL, the different is zero.

RETURNS

The distance between the two matrices, or a negative number if there is an error (not very likely--currently impossible). Note that sending in matrices with incompatable dimensions is regarded as a bug. (See set_bug(3)).

DISCLAIMER

This software is not adequatedly tested. It is recomended that results are checked independantly where appropriate.

AUTHOR

Kobus Barnard

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