scalapack_oct_m::scalapack_orgqr Interface Reference

Generates an \( m \times n\) real distributed matrix Q denoting A(IA:IA+M-1,JA:JA+N-1) with orthonormal columns, which is defined as the first N columns of a product of K elementary reflectors of order M. More...

Detailed Description

Generates an \( m \times n\) real distributed matrix Q denoting A(IA:IA+M-1,JA:JA+N-1) with orthonormal columns, which is defined as the first N columns of a product of K elementary reflectors of order M.

\[ Q = H(1) H(2) . . . H(k) \]

as returned by PDGEQRF.

Definition at line 206 of file scalapack.F90.

Public Member Functions
subroutine	pdorgqr (m, n, k, a, ia, ja, desca, tau, work, lwork, info)
subroutine	pzungqr (m, n, k, a, ia, ja, desca, tau, work, lwork, info)

Member Function/Subroutine Documentation

pdorgqr()

subroutine scalapack_oct_m::scalapack_orgqr::pdorgqr	(	integer	m,
		integer	n,
		integer	k,
		double precision	a,
		integer	ia,
		integer	ja,
		integer	desca,
		double precision	tau,
		double precision	work,
		integer	lwork,
		integer	info
	)

Definition at line 207 of file scalapack.F90.

pzungqr()

subroutine scalapack_oct_m::scalapack_orgqr::pzungqr	(	integer	m,
		integer	n,
		integer	k,
		complex(real64)	a,
		integer	ia,
		integer	ja,
		integer	desca,
		complex(real64)	tau,
		complex(real64)	work,
		integer	lwork,
		integer	info
	)

Definition at line 214 of file scalapack.F90.

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

• math/scalapack.F90