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[r27]: / trunk / include / dssmatrix- / dssmatrix-calc.hpp  Maximize  Restore  History

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//=============================================================================
/*! return transposed dgsmatrix */
inline _dgsmatrix t(const dgsmatrix& mat)
{
#ifdef CPPL_VERBOSE
std::cerr << "# [MARK] t(const dgsmatrix&)"
<< std::endl;
#endif//CPPL_VERBOSE
dgsmatrix newmat(mat.N,mat.M,mat.CAP);
for(long c=0; c<mat.VOL; c++){
newmat.fput(mat.Jndx[c], mat.Indx[c], mat.Array[c]);
}
return _(newmat);
}
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
//=============================================================================
/*! search the index of element having the largest absolute value
in 0-based numbering system */
inline void idamax(long& i, long& j, const dgsmatrix& mat)
{
#ifdef CPPL_VERBOSE
std::cerr << "# [MARK] idamax(long&, long&, const dgsmatrix&)"
<< std::endl;
#endif//CPPL_VERBOSE
long index( idamax_(mat.VOL, mat.Array, 1) -1 );
i =mat.Indx[index];
j =mat.Jndx[index];
}
//=============================================================================
/*! return its largest absolute value */
inline double damax(const dgsmatrix& mat)
{
#ifdef CPPL_VERBOSE
std::cerr << "# [MARK] damax(const dgsmatrix&)"
<< std::endl;
#endif//CPPL_VERBOSE
return mat.Array[idamax_(mat.VOL, mat.Array, 1) -1];
}
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