dgematrix-dgbmatrix.hpp File Reference

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Functions
_dgematrix	operator+ (const dgematrix &matA, const dgbmatrix &matB)
_dgematrix	operator- (const dgematrix &matA, const dgbmatrix &matB)
_dgematrix	operator* (const dgematrix &matA, const dgbmatrix &matB)

Function Documentation

_dgematrix operator+ ( const dgematrix &  matA, const dgbmatrix &  matB  )

inline

dgematrix+dgbmatrix operator

Definition at line 81 of file dgematrix-dgbmatrix.hpp.

References _(), i(), dgbmatrix::kl, dgbmatrix::ku, dgbmatrix::m, dgematrix::m, dgematrix::n, and dgbmatrix::n.

{CPPL_VERBOSE_REPORT;
#ifdef  CPPL_DEBUG
  if(matA.n!=matB.n || matA.m!=matB.m){
    ERROR_REPORT;
    std::cerr << "These two matrises can not make a summation." << std::endl
              << "Your input was (" << matA.m << "x" << matA.n << ") + (" << matB.m << "x" << matB.n << ")." << std::endl;
    exit(1);
  }
#endif//CPPL_DEBUG
  
  dgematrix newmat(matA);
  
  for(CPPL_INT i=0; i<matB.m; i++){
    const CPPL_INT jmax =std::min(matB.n,i+matB.ku+1);
    for(CPPL_INT j=std::max(CPPL_INT(0),i-matB.kl); j<jmax; j++){
      newmat(i,j) += matB(i,j);
    }
  }
  
  return _(newmat);
}

_dgematrix operator- ( const dgematrix &  matA, const dgbmatrix &  matB  )

inline

dgematrix-dgbmatrix operator

Definition at line 106 of file dgematrix-dgbmatrix.hpp.

References _(), i(), dgbmatrix::kl, dgbmatrix::ku, dgbmatrix::m, dgematrix::m, dgematrix::n, and dgbmatrix::n.

{CPPL_VERBOSE_REPORT;
#ifdef  CPPL_DEBUG
  if(matA.n!=matB.n || matA.m!=matB.m){
    ERROR_REPORT;
    std::cerr << "These two matrises can not make a summation." << std::endl
              << "Your input was (" << matA.m << "x" << matA.n << ") + (" << matB.m << "x" << matB.n << ")." << std::endl;
    exit(1);
  }
#endif//CPPL_DEBUG
  
  dgematrix newmat(matA);
  
  for(CPPL_INT i=0; i<matB.m; i++){
    const CPPL_INT jmax =std::min(matB.n,i+matB.ku+1);
    for(CPPL_INT j=std::max(CPPL_INT(0),i-matB.kl); j<jmax; j++){
      newmat(i,j) -= matB(i,j);
    }
  }
  
  return _(newmat);
}

_dgematrix operator* ( const dgematrix &  matA, const dgbmatrix &  matB  )

inline

dgematrix*dgbmatrix operator

Definition at line 131 of file dgematrix-dgbmatrix.hpp.

References _(), i(), dgbmatrix::kl, dgbmatrix::ku, dgbmatrix::m, dgematrix::m, dgematrix::n, dgbmatrix::n, and dgematrix::zero().

{CPPL_VERBOSE_REPORT;
#ifdef  CPPL_DEBUG
  if(matA.n!=matB.m){
    ERROR_REPORT;
    std::cerr << "These two matrises can not make a product." << std::endl
              << "Your input was (" << matA.m << "x" << matA.n << ") * (" << matB.m << "x" << matB.n << ")." << std::endl;
    exit(1);
  }
#endif//CPPL_DEBUG
  
  dgematrix newmat( matA.m, matB.n );
  newmat.zero();
  
  for(CPPL_INT i=0; i<newmat.m; i++){
    for(CPPL_INT j=0; j<newmat.n; j++){
      const CPPL_INT kmax =std::min(matB.m,j+matB.kl+1);
      for(CPPL_INT k=std::max(CPPL_INT(0),j-matB.ku); k<kmax; k++){
        newmat(i,j) += matA(i,k)*matB(k,j);
      }
    }
  }
  
  return _(newmat);
}