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_dgbmatrix-dgsmatrix.hpp
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1 //=============================================================================
2 /*! _dgbmatrix+dgsmatrix operator */
3 inline _dgematrix operator+(const _dgbmatrix& matA, const dgsmatrix& matB)
4 {CPPL_VERBOSE_REPORT;
5 #ifdef CPPL_DEBUG
6  if(matA.n!=matB.n || matA.m!=matB.m){
7  ERROR_REPORT;
8  std::cerr << "These two matrises can not make a summation." << std::endl
9  << "Your input was (" << matA.m << "x" << matA.n << ") + (" << matB.m << "x" << matB.n << ")." << std::endl;
10  exit(1);
11  }
12 #endif//CPPL_DEBUG
13 
14  dgematrix newmat( matB.to_dgematrix() );
15 
16  for(CPPL_INT i=0; i<matA.m; i++){
17  const CPPL_INT jmax =std::min(matA.n,i+matA.ku+1);
18  for(CPPL_INT j=std::max(CPPL_INT(0),i-matA.kl); j<jmax; j++){
19  newmat(i,j)+=matA(i,j);
20  }
21  }
22 
23  matA.destroy();
24  return _(newmat);
25 }
26 
27 //=============================================================================
28 /*! _dgbmatrix-dgsmatrix operator */
29 inline _dgematrix operator-(const _dgbmatrix& matA, const dgsmatrix& matB)
30 {CPPL_VERBOSE_REPORT;
31 #ifdef CPPL_DEBUG
32  if(matA.n!=matB.n || matA.m!=matB.m){
33  ERROR_REPORT;
34  std::cerr << "These two matrises can not make a summation." << std::endl
35  << "Your input was (" << matA.m << "x" << matA.n << ") + (" << matB.m << "x" << matB.n << ")." << std::endl;
36  exit(1);
37  }
38 #endif//CPPL_DEBUG
39 
40  dgematrix newmat( (-matB).to_dgematrix() );
41 
42  for(CPPL_INT i=0; i<matA.m; i++){
43  const CPPL_INT jmax =std::min(matA.n,i+matA.ku+1);
44  for(CPPL_INT j=std::max(CPPL_INT(0),i-matA.kl); j<jmax; j++){
45  newmat(i,j)-=matA(i,j);
46  }
47  }
48 
49  matA.destroy();
50  return _(newmat);
51 }
52 
53 //=============================================================================
54 /*! _dgbmatrix*dgsmatrix operator */
55 inline _dgematrix operator*(const _dgbmatrix& matA, const dgsmatrix& matB)
56 {CPPL_VERBOSE_REPORT;
57 #ifdef CPPL_DEBUG
58  if(matA.n!=matB.m){
59  ERROR_REPORT;
60  std::cerr << "These two matrises can not make a product." << std::endl
61  << "Your input was (" << matA.m << "x" << matA.n << ") * (" << matB.m << "x" << matB.n << ")." << std::endl;
62  exit(1);
63  }
64 #endif//CPPL_DEBUG
65 
66  dgematrix newmat( matA.m, matB.n );
67  newmat.zero();
68 
69  const std::vector<dcomponent>::const_iterator matB_data_end =matB.data.end();
70  for(std::vector<dcomponent>::const_iterator it=matB.data.begin(); it!=matB_data_end; it++){
71  const CPPL_INT imax =std::min(matA.m,it->i+matA.kl);
72  for(CPPL_INT i=std::max(CPPL_INT(0),it->i-(matA.ku+1)); i<imax; i++){
73  newmat(i,it->j) += matA(i,it->i)*it->v;
74  }
75  }
76 
77  matA.destroy();
78  return _(newmat);
79 }
Real Double-precision General Sparse Matrix Class.
Definition: dgsmatrix.hpp:3
std::vector< dcomponent > data
matrix data
Definition: dgsmatrix.hpp:11
CPPL_INT ku
upper band width
Definition: _dgbmatrix.hpp:12
CPPL_INT n
matrix column size
Definition: dgsmatrix.hpp:10
void destroy() const
dgematrix & zero()
_dgematrix i(const _dgbmatrix &mat)
Real Double-precision General Dence Matrix Class.
Definition: dgematrix.hpp:3
CPPL_INT kl
lower band width
Definition: _dgbmatrix.hpp:11
friend _dgematrix i(const _dgematrix &)
CPPL_INT n
matrix column size
Definition: _dgbmatrix.hpp:10
(DO NOT USE) Smart-temporary Real Double-precision General Dence Matrix Class
Definition: _dgematrix.hpp:3
_dgematrix to_dgematrix() const
_dgematrix operator-(const _dgbmatrix &matA, const dgsmatrix &matB)
_dgematrix operator+(const _dgbmatrix &matA, const dgsmatrix &matB)
(DO NOT USE) Smart-temporary Real Double-precision General Band Matrix Class
Definition: _dgbmatrix.hpp:3
_dcovector _(dcovector &vec)
_dgematrix operator*(const _dgbmatrix &matA, const dgsmatrix &matB)
CPPL_INT m
matrix row size
Definition: dgsmatrix.hpp:9
CPPL_INT m
matrix row size
Definition: _dgbmatrix.hpp:9