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[r31]: / trunk / include / _zgematrix- / _zgematrix-calc.hpp  Maximize  Restore  History

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//=============================================================================
/*! return transposed zgematrix */
inline _zgematrix t(const _zgematrix& mat)
{
#ifdef CPPL_VERBOSE
std::cerr << "# [MARK] t(const _zgematrix&)"
<< std::endl;
#endif//CPPL_VERBOSE
zgematrix newmat(mat.N,mat.M);
for(long i=0; i<newmat.m; i++){
for(long j=0; j<newmat.n; j++){
newmat(i,j) =mat(j,i);
}
}
mat.destroy();
return _(newmat);
}
//=============================================================================
/*! return its inverse matrix */
inline _zgematrix i(const _zgematrix& mat)
{
#ifdef CPPL_VERBOSE
std::cerr << "# [MARK] i(const _zgematrix&)"
<< std::endl;
#endif//CPPL_VERBOSE
#ifdef CPPL_DEBUG
if(mat.M!=mat.N){
std::cerr << "[ERROR] t(_zgematrix&) " << std::endl
<< "This matrix is not square and has no inverse matrix."
<< std::endl
<< "Your input was (" << mat.M << "x" << mat.N << ")."
<< std::endl;
exit(1);
}
#endif//CPPL_DEBUG
zgematrix mat_cp(mat);
zgematrix mat_inv(mat_cp.m,mat_cp.n);
mat_inv.identity();
mat_cp.zgesv(mat_inv);
return _(mat_inv);
}
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
//=============================================================================
/*! return its conjugate matrix */
inline _zgematrix conj(const _zgematrix& mat)
{
#ifdef CPPL_VERBOSE
std::cerr << "# [MARK] conj(const _zgematrix&)"
<< std::endl;
#endif//CPPL_VERBOSE
for(long i=0; i<mat.M; i++){ for(long j=0; j<mat.N; j++){
mat(i,j) =std::conj(mat(i,j));
}}
return mat;
}
//=============================================================================
/*! return its conjugate transposed matrix */
inline _zgematrix conjt(const _zgematrix& mat)
{
#ifdef CPPL_VERBOSE
std::cerr << "# [MARK] conjt(const _zgematrix&)"
<< std::endl;
#endif//CPPL_VERBOSE
zgematrix newmat(mat.N,mat.M);
for(long i=0; i<newmat.m; i++){
for(long j=0; j<newmat.n; j++){
newmat(i,j) =std::conj(mat(j,i));
}
}
mat.destroy();
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 _zgematrix& mat)
{
#ifdef CPPL_VERBOSE
std::cerr << "# [MARK] idamax(long&, long&, const _zgematrix&)"
<< std::endl;
#endif//CPPL_VERBOSE
long index( izamax_(mat.M*mat.N, mat.Array, 1) -1 );
i =index%mat.M;
j =index/mat.M;
mat.destroy();
}
//=============================================================================
/*! return its largest absolute value */
inline std::complex<double> damax(const _zgematrix& mat)
{
#ifdef CPPL_VERBOSE
std::cerr << "# [MARK] damax(const _zgematrix&)"
<< std::endl;
#endif//CPPL_VERBOSE
std::complex<double> val( mat.Array[izamax_(mat.M*mat.N, mat.Array, 1) -1] );
mat.destroy();
return val;
}
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