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