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[r151]: / trunk / include / zgematrix- / zgematrix-calc.hpp  Maximize  Restore  History

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//=============================================================================
/*! return transposed zgematrix */
inline _zgematrix t(const zgematrix& mat)
{CPPL_VERBOSE_REPORT;
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);
}}
return _(newmat);
}
//=============================================================================
/*! return its inverse matrix */
inline _zgematrix i(const zgematrix& mat)
{CPPL_VERBOSE_REPORT;
#ifdef CPPL_DEBUG
if(mat.m!=mat.n){
ERROR_REPORT;
std::cerr << "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), mat_inv(mat.m,mat.n);
mat_inv.identity();
mat_cp.zgesv(mat_inv);
return _(mat_inv);
}
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
//=============================================================================
/*! return its conjugate matrix */
inline _zgematrix conj(const zgematrix& mat)
{CPPL_VERBOSE_REPORT;
zgematrix newmat(mat.m,mat.n);
for(long i=0; i<mat.m; i++){ for(long j=0; j<mat.n; j++){
newmat(i,j) =std::conj(mat(i,j));
}}
return _(newmat);
}
//=============================================================================
/*! return its conjugate transposed matrix */
inline _zgematrix conjt(const zgematrix& mat)
{CPPL_VERBOSE_REPORT;
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));
}}
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)
{CPPL_VERBOSE_REPORT;
long index( izamax_(mat.m*mat.n, mat.array, 1) -1 );
i =index%mat.m;
j =index/mat.m;
}
//=============================================================================
/*! return its largest absolute value */
inline comple damax(const zgematrix& mat)
{CPPL_VERBOSE_REPORT;
return mat.array[izamax_(mat.m*mat.n, mat.array, 1) -1];
}
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