unghr Interface

public interface unghr

UNGHR generates a complex unitary matrix Q which is defined as the product of IHI-ILO elementary reflectors of order N, as returned by CGEHRD: Q = H(ilo) H(ilo+1) . . . H(ihi-1).

Subroutines

public pure subroutine cunghr(n, ilo, ihi, a, lda, tau, work, lwork, info)

Arguments

Type	Intent	Optional	Attributes		Name
integer(kind=ilp),	intent(in)			::	n
integer(kind=ilp),	intent(in)			::	ilo
integer(kind=ilp),	intent(in)			::	ihi
complex(kind=sp),	intent(inout)			::	a(lda,*)
integer(kind=ilp),	intent(in)			::	lda
complex(kind=sp),	intent(in)			::	tau(*)
complex(kind=sp),	intent(out)			::	work(*)
integer(kind=ilp),	intent(in)			::	lwork
integer(kind=ilp),	intent(out)			::	info

public pure subroutine zunghr(n, ilo, ihi, a, lda, tau, work, lwork, info)

Arguments

Type	Intent	Optional	Attributes		Name
integer(kind=ilp),	intent(in)			::	n
integer(kind=ilp),	intent(in)			::	ilo
integer(kind=ilp),	intent(in)			::	ihi
complex(kind=dp),	intent(inout)			::	a(lda,*)
integer(kind=ilp),	intent(in)			::	lda
complex(kind=dp),	intent(in)			::	tau(*)
complex(kind=dp),	intent(out)			::	work(*)
integer(kind=ilp),	intent(in)			::	lwork
integer(kind=ilp),	intent(out)			::	info

Module Procedures

public interface stdlib_cunghr()

Arguments

None

public interface stdlib_zunghr()

Arguments

None