geqrfp Interface

public interface geqrfp

CGEQR2P computes a QR factorization of a complex M-by-N matrix A: A = Q * ( R ), ( 0 ) where: Q is a M-by-M orthogonal matrix; R is an upper-triangular N-by-N matrix with nonnegative diagonal entries; 0 is a (M-N)-by-N zero matrix, if M > N.

Subroutines

public subroutine cgeqrfp(m, n, a, lda, tau, work, lwork, info)

Arguments

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

public subroutine dgeqrfp(m, n, a, lda, tau, work, lwork, info)

Arguments

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

public subroutine sgeqrfp(m, n, a, lda, tau, work, lwork, info)

Arguments

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

public subroutine zgeqrfp(m, n, a, lda, tau, work, lwork, info)

Arguments

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

Module Procedures

public interface stdlib_cgeqrfp()

Arguments

None

public interface stdlib_dgeqrfp()

Arguments

None

public interface stdlib_sgeqrfp()

Arguments

None

public interface stdlib_zgeqrfp()

Arguments

None