f77_org2r Interface
public interface f77_org2r
Generic old style interface for ORG2R. Supports s, d. See also: mfi_org2r, sorg2r, dorg2r.
Subroutines
public pure subroutine sorg2r(m, n, k, a, lda, tau, work, info)
Original interface for SORG2R See also: mfi_org2r, f77_org2r. 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(out) | :: | info |
public pure subroutine dorg2r(m, n, k, a, lda, tau, work, info)
Original interface for DORG2R See also: mfi_org2r, f77_org2r. 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(out) | :: | info |