geqrt Interface

public interface geqrt

GEQRT computes a blocked QR factorization of a complex M-by-N matrix A using the compact WY representation of Q.

Subroutines

public pure subroutine cgeqrt(m, n, nb, a, lda, t, ldt, work, info)

Arguments

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

public pure subroutine dgeqrt(m, n, nb, a, lda, t, ldt, work, info)

Arguments

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

public pure subroutine sgeqrt(m, n, nb, a, lda, t, ldt, work, info)

Arguments

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

public pure subroutine zgeqrt(m, n, nb, a, lda, t, ldt, work, info)

Arguments

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

Module Procedures

public interface stdlib_cgeqrt()

Arguments

None

public interface stdlib_dgeqrt()

Arguments

None

public interface stdlib_sgeqrt()

Arguments

None

public interface stdlib_zgeqrt()

Arguments

None