multishift_qr_sweep.hpp File Reference

#include "tlapack/base/utils.hpp"
#include "tlapack/blas/gemm.hpp"
#include "tlapack/lapack/lahqr_shiftcolumn.hpp"
#include "tlapack/lapack/larfg.hpp"
#include "tlapack/lapack/move_bulge.hpp"

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Functions
template<TLAPACK_SMATRIX matrix_t, TLAPACK_VECTOR vector_t, enable_if_t< is_complex< type_t< vector_t > >, bool > = true>
void	tlapack::multishift_QR_sweep (bool want_t, bool want_z, size_type< matrix_t > ilo, size_type< matrix_t > ihi, matrix_t &A, const vector_t &s, matrix_t &Z)
	multishift_QR_sweep performs a single small-bulge multi-shift QR sweep.
template<TLAPACK_SMATRIX matrix_t, TLAPACK_VECTOR vector_t, TLAPACK_WORKSPACE work_t, enable_if_t< is_complex< type_t< vector_t > >, bool > = true>
void	tlapack::multishift_QR_sweep_work (bool want_t, bool want_z, size_type< matrix_t > ilo, size_type< matrix_t > ihi, matrix_t &A, const vector_t &s, matrix_t &Z, work_t &work)
	multishift_QR_sweep performs a single small-bulge multi-shift QR sweep. Workspace is provided as an argument.
template<class T , TLAPACK_SMATRIX matrix_t, TLAPACK_VECTOR vector_t, enable_if_t< is_complex< type_t< vector_t > >, bool > = true>
constexpr WorkInfo	tlapack::multishift_QR_sweep_worksize (bool want_t, bool want_z, size_type< matrix_t > ilo, size_type< matrix_t > ihi, const matrix_t &A, const vector_t &s, const matrix_t &Z)
	Worspace query of multishift_QR_sweep()

Detailed Description

Author

Thijs Steel, KU Leuven, Belgium