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/***********************************************/
/**
* @file matrixGeneratorMultiplication.h
*
* @brief Multiplication of matrices.
*
* @author Torsten Mayer-Guerr
* @date 2017-09-01
*
*/
/***********************************************/
#ifndef __GROOPS_MATRIXGENERATORMULTIPLICATION__
#define __GROOPS_MATRIXGENERATORMULTIPLICATION__
// Latex documentation
#ifdef DOCSTRING_MatrixGenerator
static const char *docstringMatrixGeneratorMultiplication = R"(
\subsection{Multiplication}
Multiplication of matrices.
)";
#endif
/***********************************************/
#include "base/import.h"
#include "matrixGenerator.h"
/***** CLASS ***********************************/
/** @brief Multiplication of matrices.
* @ingroup matrixGeneratorGroup
* @see MatrixGenerator */
class MatrixGeneratorMultiplication : public MatrixGeneratorBase
{
Double factor;
MatrixGeneratorPtr matrix1, matrix2;
public:
MatrixGeneratorMultiplication(Config &config);
void compute(Matrix &A, UInt rowsBefore, UInt columnsBefore, UInt &startRow, UInt &startCol);
};
/***********************************************/
/***** Inlines *********************************/
/***********************************************/
inline MatrixGeneratorMultiplication::MatrixGeneratorMultiplication(Config &config)
{
try
{
readConfig(config, "matrix1", matrix1, Config::MUSTSET, "", "");
readConfig(config, "matrix2", matrix2, Config::MUSTSET, "", "");
readConfig(config, "factor", factor, Config::DEFAULT, "1.0", "");
if(isCreateSchema(config)) return;
}
catch(std::exception &e)
{
GROOPS_RETHROW(e)
}
}
/***********************************************/
inline void MatrixGeneratorMultiplication::compute(Matrix &A, UInt /*rowsBefore*/, UInt /*columnsBefore*/, UInt &/*startRow*/, UInt &/*startCol*/)
{
try
{
A = factor * matrix1->compute() * matrix2->compute();
if(A.getType() == Matrix::SYMMETRIC)
fillSymmetric(A);
}
catch(std::exception &e)
{
GROOPS_RETHROW(e)
}
}
/***********************************************/
#endif
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