f77_orgqr Interface
public interface f77_orgqr
Generic old style interface for ORGQR. Supports s, d. See also: mfi_orgqr, sorgqr, dorgqr.
Subroutines
public pure subroutine sorgqr(m, n, k, a, lda, tau, work, lwork, info)
Original interface for SORGQR See also: mfi_orgqr, f77_orgqr. This routine generates an real(REAL32) matrix with orthonormal columns, which is defined as the first columns of a product of elementary reflectors of order . as returned by sgeqrf.
Arguments
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| integer, | intent(in) | :: | m | |||
| integer, | intent(in) | :: | n | |||
| integer, | intent(in) | :: | k | |||
| real(kind=REAL32), | intent(inout) | :: | a(lda,*) | |||
| integer, | intent(in) | :: | lda | |||
| real(kind=REAL32), | intent(in) | :: | tau(*) | |||
| real(kind=REAL32), | intent(out) | :: | work(*) | |||
| integer, | intent(in) | :: | lwork | |||
| integer, | intent(out) | :: | info |
public pure subroutine dorgqr(m, n, k, a, lda, tau, work, lwork, info)
Original interface for DORGQR See also: mfi_orgqr, f77_orgqr. This routine generates an real(REAL64) matrix with orthonormal columns, which is defined as the first columns of a product of elementary reflectors of order . as returned by dgeqrf.
Arguments
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| integer, | intent(in) | :: | m | |||
| integer, | intent(in) | :: | n | |||
| integer, | intent(in) | :: | k | |||
| real(kind=REAL64), | intent(inout) | :: | a(lda,*) | |||
| integer, | intent(in) | :: | lda | |||
| real(kind=REAL64), | intent(in) | :: | tau(*) | |||
| real(kind=REAL64), | intent(out) | :: | work(*) | |||
| integer, | intent(in) | :: | lwork | |||
| integer, | intent(out) | :: | info |