SYGST: reduces a real symmetric-definite generalized eigenproblem to standard form. If ITYPE = 1, the problem is A*x = lambda*B*x, and A is overwritten by inv(U**T)*A*inv(U) or inv(L)*A*inv(L**T) If ITYPE = 2 or 3, the problem is A*B*x = lambda*x or B*A*x = lambda*x, and A is overwritten by U*A*U**T or L**T*A*L. B must have been previously factorized as U**T*U or L*L**T by DPOTRF. More...

Public Member Functions
pure subroutine	dsygst (itype, uplo, n, a, lda, b, ldb, info)

	la_dsygst

	la_qsygst

pure subroutine	ssygst (itype, uplo, n, a, lda, b, ldb, info)

	la_ssygst

Detailed Description

SYGST: reduces a real symmetric-definite generalized eigenproblem to standard form. If ITYPE = 1, the problem is A*x = lambda*B*x, and A is overwritten by inv(U**T)*A*inv(U) or inv(L)*A*inv(L**T) If ITYPE = 2 or 3, the problem is A*B*x = lambda*x or B*A*x = lambda*x, and A is overwritten by U*A*U**T or L**T*A*L. B must have been previously factorized as U**T*U or L*L**T by DPOTRF.

Member Function/Subroutine Documentation

◆ dsygst()

pure subroutine la_lapack::sygst::dsygst	(	integer(ilp), intent(in)	itype,
		character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		real(dp), dimension(lda,*), intent(inout)	a,
		integer(ilp), intent(in)	lda,
		real(dp), dimension(ldb,*), intent(in)	b,
		integer(ilp), intent(in)	ldb,
		integer(ilp), intent(out)	info
	)

◆ la_dsygst()

la_lapack::sygst::la_dsygst

◆ la_qsygst()

la_lapack::sygst::la_qsygst

◆ la_ssygst()

la_lapack::sygst::la_ssygst

◆ ssygst()

pure subroutine la_lapack::sygst::ssygst	(	integer(ilp), intent(in)	itype,
		character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		real(sp), dimension(lda,*), intent(inout)	a,
		integer(ilp), intent(in)	lda,
		real(sp), dimension(ldb,*), intent(in)	b,
		integer(ilp), intent(in)	ldb,
		integer(ilp), intent(out)	info
	)

The documentation for this interface was generated from the following file:

la_lapack.f90