CPPLapack
 All Classes Files Functions Variables Friends Pages
_zhematrix-zgbmatrix.hpp
Go to the documentation of this file.
1 //=============================================================================
2 /*! _zhematrix+zgbmatrix operator */
3 inline _zgematrix operator+(const _zhematrix& matA, const zgbmatrix& matB)
4 {CPPL_VERBOSE_REPORT;
5 #ifdef CPPL_DEBUG
6  if(matA.n!=matB.n || matA.n!=matB.m){
7  ERROR_REPORT;
8  std::cerr << "These two matrises can not make a summation." << std::endl
9  << "Your input was (" << matA.n << "x" << matA.n << ") + (" << matB.m << "x" << matB.n << ")." << std::endl;
10  exit(1);
11  }
12 #endif//CPPL_DEBUG
13 
14  zgematrix newmat(matA.n, matA.n);
15 
16  for(CPPL_INT i=0; i<matB.m; i++){
17  for(CPPL_INT j=0; j<matA.n; j++){
18  newmat(i,j) =matA(i,j);
19  }
20  const CPPL_INT jmax =std::min(matB.n,i+matB.ku+1);
21  for(CPPL_INT j=std::max(CPPL_INT(0),i-matB.kl); j<jmax; j++){
22  newmat(i,j) += matB(i,j);
23  }
24  }
25 
26  matA.destroy();
27  return _(newmat);
28 }
29 
30 //=============================================================================
31 /*! _zhematrix-zgbmatrix operator */
32 inline _zgematrix operator-(const _zhematrix& matA, const zgbmatrix& matB)
33 {CPPL_VERBOSE_REPORT;
34 #ifdef CPPL_DEBUG
35  if(matA.n!=matB.n || matA.n!=matB.m){
36  ERROR_REPORT;
37  std::cerr << "These two matrises can not make a summation." << std::endl
38  << "Your input was (" << matA.n << "x" << matA.n << ") + (" << matB.m << "x" << matB.n << ")." << std::endl;
39  exit(1);
40  }
41 #endif//CPPL_DEBUG
42 
43  zgematrix newmat(matA.n, matA.n);
44 
45  for(CPPL_INT i=0; i<matB.m; i++){
46  for(CPPL_INT j=0; j<matA.n; j++){
47  newmat(i,j) =matA(i,j);
48  }
49  const CPPL_INT jmax =std::min(matB.n,i+matB.ku+1);
50  for(CPPL_INT j=std::max(CPPL_INT(0),i-matB.kl); j<jmax; j++){
51  newmat(i,j) -= matB(i,j);
52  }
53  }
54 
55  matA.destroy();
56  return _(newmat);
57 }
58 
59 //=============================================================================
60 /*! _zgematrix*zgbmatrix operator */
61 inline _zgematrix operator*(const _zhematrix& matA, const zgbmatrix& matB)
62 {CPPL_VERBOSE_REPORT;
63 #ifdef CPPL_DEBUG
64  if(matA.n!=matB.m){
65  ERROR_REPORT;
66  std::cerr << "These two matrises can not make a product." << std::endl
67  << "Your input was (" << matA.n << "x" << matA.n << ") * (" << matB.m << "x" << matB.n << ")." << std::endl;
68  exit(1);
69  }
70 #endif//CPPL_DEBUG
71 
72  zgematrix newmat( matA.n, matB.n );
73  newmat.zero();
74 
75  for(CPPL_INT i=0; i<newmat.m; i++){
76  for(CPPL_INT j=0; j<newmat.n; j++){
77  const CPPL_INT kmax =std::min(matB.m,j+matB.kl+1);
78  for(CPPL_INT k=std::max(CPPL_INT(0),j-matB.ku); k<kmax; k++){
79  newmat(i,j) += matA(i,k)*matB(k,j);
80  }
81  }
82  }
83 
84  matA.destroy();
85  return _(newmat);
86 }
(DO NOT USE) Smart-temporary Complex Double-precision Hermitian Matrix Class
Definition: _zhematrix.hpp:3
_zgematrix operator+(const _zhematrix &matA, const zgbmatrix &matB)
CPPL_INT n
matrix column size
Definition: _zhematrix.hpp:11
_dgematrix i(const _dgbmatrix &mat)
CPPL_INT n
matrix column size
Definition: zgbmatrix.hpp:10
CPPL_INT ku
upper band width
Definition: zgbmatrix.hpp:12
CPPL_INT n
matrix column size
Definition: zgematrix.hpp:10
Complex Double-precision General Dence Matrix Class.
Definition: zgematrix.hpp:3
zgematrix & zero()
_zgematrix operator-(const _zhematrix &matA, const zgbmatrix &matB)
(DO NOT USE) Smart-temporary Complex Double-precision General Dence Matrix Class
Definition: _zgematrix.hpp:3
CPPL_INT m
matrix row size
Definition: zgbmatrix.hpp:9
Complex Double-precision General Band Matrix Class.
Definition: zgbmatrix.hpp:3
void destroy() const
_zgematrix operator*(const _zhematrix &matA, const zgbmatrix &matB)
CPPL_INT m
matrix row size
Definition: zgematrix.hpp:9
CPPL_INT kl
lower band width
Definition: zgbmatrix.hpp:11
_dcovector _(dcovector &vec)