NAME

ow_subtract_vector_times_scalar - Subtracts a scalar times the second vector from the first.

SYNOPSIS

#include "m/m_vec_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_subtract_vector_times_scalar
(
	Vector *first_vp,
	const Vector *second_vp,
	double scalar
);

DESCRIPTION

This routine subtracts a scalar times the second vector from the first. The second vector must fit into the first an integral number of times. The second vector is added to each block in the first vector.

RETURNS

NO_ERROR on success, and ERROR on failure, with an error message being set.

NOTE

While it looks very specific, this operation is surprisingly common, and thus it makes sense to do both the multiply and subtract in the same loop.

DISCLAIMER

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

AUTHOR

Kobus Barnard

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