dssmatrix-calc.hpp File Reference

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Functions
_dssmatrix	t (const dssmatrix &mat)
void	idamax (CPPL_INT &i, CPPL_INT &j, const dssmatrix &mat)
double	damax (const dssmatrix &mat)

Function Documentation

_dssmatrix t ( const dssmatrix &  mat )

inline

return transposed dssmatrix

Definition at line 3 of file dssmatrix-calc.hpp.

References _().

{CPPL_VERBOSE_REPORT;
#ifdef  CPPL_DEBUG
  WARNING_REPORT;
  std::cerr << "This function call has no effect since the matrix is symmetric." << std::endl;
#endif//CPPL_DEBUG

  dssmatrix newmat(mat);
  return _(newmat);
}

void idamax ( CPPL_INT &  i, CPPL_INT &  j, const dssmatrix &  mat  )

inline

search the index of element having the largest absolute value in 0-based numbering system

Definition at line 21 of file dssmatrix-calc.hpp.

References dssmatrix::data.

{CPPL_VERBOSE_REPORT;
  std::vector<dcomponent>::const_iterator itx(mat.data.begin());
  double vmax =0.;
  
  const std::vector<dcomponent>::const_iterator mat_data_end =mat.data.end();
  for(std::vector<dcomponent>::const_iterator it=mat.data.begin(); it!=mat_data_end; it++){
    if( vmax < fabs(it->v) ){
      vmax =fabs(it->v);
      itx =it;
    }
  }
  
  i =itx->i;
  j =itx->j;
}

double damax ( const dssmatrix &  mat )

inline

return its largest absolute value

Definition at line 40 of file dssmatrix-calc.hpp.

References dssmatrix::data.

{CPPL_VERBOSE_REPORT;
  std::vector<dcomponent>::const_iterator itx(mat.data.begin());
  double vmax =0.;
  
  const std::vector<dcomponent>::const_iterator mat_data_end =mat.data.end();
  for(std::vector<dcomponent>::const_iterator it=mat.data.begin(); it!=mat_data_end; it++){
    if( vmax < fabs(it->v) ){
      vmax =fabs(it->v);
      itx =it;
    }
  }
  
  return itx->v;
}