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zgbmatrix-zcovector.hpp File Reference

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Functions

_zcovector operator* (const zgbmatrix &mat, const zcovector &vec)
 

Function Documentation

_zcovector operator* ( const zgbmatrix mat,
const zcovector vec 
)
inline

zgbmatrix*zcovector operator

Definition at line 3 of file zgbmatrix-zcovector.hpp.

References _(), zcovector::array, zgbmatrix::array, zgbmatrix::kl, zgbmatrix::ku, zcovector::l, zgbmatrix::m, and zgbmatrix::n.

4 {CPPL_VERBOSE_REPORT;
5 #ifdef CPPL_DEBUG
6  if(mat.n!=vec.l){
7  ERROR_REPORT;
8  std::cerr << "These matrix and vector can not make a product." << std::endl
9  << "Your input was (" << mat.m << "x" << mat.n << ") * (" << vec.l << ")." << std::endl;
10  exit(1);
11  }
12 #endif//CPPL_DEBUG
13 
14  zcovector newvec(mat.m);
15  char trans ='n';
16  comple alpha =comple(1.,0.);
17  CPPL_INT lda =mat.kl+mat.ku+1;
18  CPPL_INT inc =1;
19  comple beta =comple(0.,0.);
20 
21  zgbmv_( &trans, &mat.m, &mat.n, &mat.kl, &mat.ku, &alpha, mat.array, &lda, vec.array, &inc, &beta, newvec.array, &inc );
22 
23  return _(newvec);
24 }
comple * array
1D array to store vector data
Definition: zcovector.hpp:10
CPPL_INT l
vector size
Definition: zcovector.hpp:9
CPPL_INT n
matrix column size
Definition: zgbmatrix.hpp:10
CPPL_INT ku
upper band width
Definition: zgbmatrix.hpp:12
CPPL_INT m
matrix row size
Definition: zgbmatrix.hpp:9
CPPL_INT kl
lower band width
Definition: zgbmatrix.hpp:11
Complex Double-precision Column Vector Class.
Definition: zcovector.hpp:3
_dcovector _(dcovector &vec)
comple * array
1D array to store matrix data
Definition: zgbmatrix.hpp:13