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_dgsmatrix-dgbmatrix.hpp
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00001 //=============================================================================
00002 /*! _dgsmatrix+dgbmatrix operator */
00003 inline _dgematrix operator+(const _dgsmatrix& matA, const dgbmatrix& matB)
00004 {VERBOSE_REPORT;
00005 #ifdef  CPPL_DEBUG
00006   if(matA.n!=matB.n || matA.m!=matB.m){
00007     ERROR_REPORT;
00008     std::cerr << "These two matrises can not make a summation." << std::endl
00009               << "Your input was (" << matA.m << "x" << matA.n << ") + (" << matB.m << "x" << matB.n << ")." << std::endl;
00010     exit(1);
00011   }
00012 #endif//CPPL_DEBUG
00013   
00014   dgematrix newmat( matA.to_dgematrix() );
00015   
00016   for(long i=0; i<matB.m; i++){
00017     for(long j=std::max(long(0),i-matB.kl); j<std::min(matB.n,i+matB.ku+1); j++){
00018       newmat(i,j)+=matB(i,j);
00019     }
00020   }
00021   
00022   matA.destroy();
00023   return _(newmat);
00024 }
00025 
00026 //=============================================================================
00027 /*! _dgsmatrix-dgbmatrix operator */
00028 inline _dgematrix operator-(const _dgsmatrix& matA, const dgbmatrix& matB)
00029 {VERBOSE_REPORT;
00030 #ifdef  CPPL_DEBUG
00031   if(matA.n!=matB.n || matA.m!=matB.m){
00032     ERROR_REPORT;
00033     std::cerr << "These two matrises can not make a summation." << std::endl
00034               << "Your input was (" << matA.m << "x" << matA.n << ") + (" << matB.m << "x" << matB.n << ")." << std::endl;
00035     exit(1);
00036   }
00037 #endif//CPPL_DEBUG
00038   
00039   dgematrix newmat( matA.to_dgematrix() );
00040   
00041   for(long i=0; i<matB.m; i++){
00042     for(long j=std::max(long(0),i-matB.kl); j<std::min(matB.n,i+matB.ku+1); j++){
00043       newmat(i,j)-=matB(i,j);
00044     }
00045   }
00046   
00047   matA.destroy();
00048   return _(newmat);
00049 }
00050 
00051 //=============================================================================
00052 /*! _dgsmatrix*dgbmatrix operator */
00053 inline _dgematrix operator*(const _dgsmatrix& matA, const dgbmatrix& matB)
00054 {VERBOSE_REPORT;
00055 #ifdef  CPPL_DEBUG
00056   if(matA.n!=matB.m){
00057     ERROR_REPORT;
00058     std::cerr << "These two matrises can not make a product." << std::endl
00059               << "Your input was (" << matA.m << "x" << matA.n << ") * (" << matB.m << "x" << matB.n << ")." << std::endl;
00060     exit(1);
00061   }
00062 #endif//CPPL_DEBUG
00063   
00064   dgematrix newmat( matA.m, matB.n );
00065   newmat.zero();
00066   
00067   for(std::vector<dcomponent>::const_iterator it=matA.data.begin(); it!=matA.data.end(); it++){
00068     for(long j=std::max(long(0),long(it->j)-matB.kl); j<std::min(matB.n,long(it->j)+matB.ku+1); j++){
00069       newmat(it->i,j) += it->v*matB(it->j,j);
00070     }
00071   }
00072   
00073   matA.destroy();
00074   return _(newmat);
00075 }
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