NAME

is_matrix_diagonal - Checks if a matrix is diagonal.

SYNOPSIS

#include "m/m_mat_basic.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 


int is_matrix_diagonal(const Matrix *M);

DESCRIPTION

This routine checks if a matrix is diagonal.

RETURNS

TRUE if the M is diagonal and FALSE if not. If M is NULL or not square, this routine returns ERROR.

DISCLAIMER

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

AUTHOR

Ernesto Brau

DOCUMENTER

Ernesto Brau

SEE ALSO

random_split_matrix_by_rows , split_matrix_by_rows , get_matrix_transpose , create_matrix_copy , copy_matrix , select_matrix_cols , copy_matrix_block , ow_copy_matrix_block , copy_matrix_block_2 , ow_copy_matrix_block_2 , ow_copy_matrix , ow_copy_matrix_with_col_selection , copy_int_matrix_to_matrix , copy_matrix_to_int_matrix , get_random_matrix_row , get_matrix_row , ow_get_matrix_row , remove_matrix_row , put_matrix_row , copy_matrix_row , get_random_matrix_col , get_matrix_col , remove_matrix_col , put_matrix_col , copy_matrix_col , insert_zero_row_in_matrix , insert_zero_col_in_matrix , vector_is_matrix_row , stack_matrix_rows , unstack_matrix_rows , randomize_matrix_rows , pad_matrix_by_extending , get_matrix_trace , nonnan_matrix