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