NAME
ow_divide_matrices_ew - Performs element-wise division of two matrices.
SYNOPSIS
#include "m/m_mat_arith.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 ow_divide_matrices_ew
(
Matrix *first_mp,
const Matrix *second_mp
);
DESCRIPTION
This routine performs element-wise division of two matrices. The second
matrix must fit into the first an integral number of times. For example, if
the first matrix has dimenions 6x3, then the second can have dimensions 6x3
(the common case), 6x1, 3x3, 2x3, 1x6, etc, but NOT 2x2, 5x1, etc. Each block
of the first matrix is divided by the second matrix. The first matrix is
thus over-written.
RETURNS
NO_ERROR on success, and ERROR on failure, with an error message being
set. This routine will fail if any of the matrix elements are too close
to zero, or if memory allocation fails. The routine will also fail due to
dimension mismatch, but this is currently treated as a bug (see
set_bug()).
DISCLAIMER
This software is not adequatedly tested. It is recomended that
results are checked independantly where appropriate.
AUTHOR
Kobus Barnard
DOCUMENTER
Kobus Barnard
SEE ALSO
get_vector_outer_product
,
add_matrices
,
ow_add_matrices
,
ow_add_matrices_2
,
subtract_matrices
,
ow_subtract_matrices
,
multiply_matrices_ew
,
ow_multiply_matrices_ew
,
ow_multiply_matrices_ew_2
,
divide_matrices_ew
,
ow_add_matrix_times_scalar
,
ow_add_matrix_times_scalar_2
,
ow_add_int_matrix_to_matrix
,
multiply_matrices
,
multiply_by_transpose
,
multiply_with_transpose
,
multiply_by_own_transpose
,
get_dot_product_of_matrix_rows
,
get_dot_product_of_matrix_rows_2
,
invert_matrix_elements
,
square_matrix_elements
,
exp_matrix_elements
,
log_matrix_elements
,
log_matrix_elements_2
,
sqrt_matrix_elements
,
add_scalar_to_matrix
,
subtract_scalar_from_matrix
,
multiply_matrix_by_scalar
,
divide_matrix_by_scalar
,
ow_invert_matrix_elements
,
ow_square_matrix_elements
,
ow_exp_matrix_elements
,
ow_log_matrix_elements
,
ow_log_matrix_elements_2
,
ow_add_scalar_to_matrix
,
ow_subtract_scalar_from_matrix
,
ow_multiply_matrix_by_scalar
,
ow_divide_matrix_by_scalar
,
multiply_vector_and_matrix
,
multiply_matrix_and_vector
,
multiply_matrix_rows
,
add_row_vector_to_matrix
,
subtract_row_vector_from_matrix
,
multiply_matrix_by_row_vector_ew
,
divide_matrix_by_row_vector
,
ow_add_row_vector_to_matrix
,
ow_subtract_row_vector_from_matrix
,
ow_multiply_matrix_by_row_vector_ew
,
ow_divide_matrix_by_row_vector
,
ow_add_vector_to_matrix_row
,
ow_add_vector_to_matrix_col
,
ow_add_scalar_times_vector_to_matrix_row
,
ow_subtract_vector_from_matrix_row
,
ow_multiply_matrix_row_by_vector
,
ow_divide_matrix_row_by_vector
,
ow_multiply_matrix_col_by_vector
,
ow_add_scalar_to_matrix_row
,
ow_subtract_scalar_from_matrix_row
,
ow_multiply_matrix_row_by_scalar
,
ow_divide_matrix_row_by_scalar
,
add_col_vector_to_matrix
,
ow_add_col_vector_to_matrix
,
subtract_col_vector_from_matrix
,
ow_subtract_col_vector_from_matrix
,
multiply_matrix_by_col_vector_ew
,
ow_multiply_matrix_by_col_vector_ew
,
divide_matrix_by_col_vector
,
ow_divide_matrix_by_col_vector
,
ow_add_matrix_row_times_scalar
,
ow_add_matrix_rows_ew
,
ow_multiply_matrix_rows_ew
,
sum_matrix_elements
,
sum_matrix_row_elements
,
sum_matrix_col_elements
,
average_matrix_elements
,
ow_subtract_identity_matrix
,
do_matrix_recomposition
,
do_matrix_recomposition_2
,
log_sum_log_matrix_elements
,
ow_exp_scale_by_sum_log_matrix_row
,
ow_add_matrix_row_to_vector
,
ow_get_abs_of_matrix
,
get_abs_of_matrix
,
get_euler_rotation_matrix
,
get_euler_homo_rotation_matrix
,
get_3d_rotation_matrix_1
,
get_3d_rotation_matrix_2
,
get_2d_rotation_matrix
,
get_3d_homo_rotation_matrix_1
,
get_3d_homo_rotation_matrix_2
,
get_2d_homo_rotation_matrix
,
get_3d_scaling_matrix_1
,
get_3d_scaling_matrix_2
,
get_3d_homo_scaling_matrix_1
,
get_3d_homo_scaling_matrix_2
,
get_3d_homo_translation_matrix_1
,
get_3d_homo_translation_matrix_2