f77_ungr2 Interface
public interface f77_ungr2
Generic old style interface for UNGR2. Supports c, z. See also: mfi_ungr2, cungr2, zungr2.
Subroutines
public pure subroutine cungr2(m, n, k, a, lda, tau, work, info)
Original interface for CUNGR2 See also: mfi_ungr2, f77_ungr2. This routine generates an complex(REAL32) matrix with orthonormal rows, which is defined as the last rows of a product of elementary reflectors of order . as returned by cgerqf.
Arguments
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| integer, | intent(in) | :: | m | |||
| integer, | intent(in) | :: | n | |||
| integer, | intent(in) | :: | k | |||
| complex(kind=REAL32), | intent(inout) | :: | a(lda,*) | |||
| integer, | intent(in) | :: | lda | |||
| complex(kind=REAL32), | intent(in) | :: | tau(*) | |||
| complex(kind=REAL32), | intent(out) | :: | work(*) | |||
| integer, | intent(out) | :: | info |
public pure subroutine zungr2(m, n, k, a, lda, tau, work, info)
Original interface for ZUNGR2 See also: mfi_ungr2, f77_ungr2. This routine generates an complex(REAL64) matrix with orthonormal rows, which is defined as the last rows of a product of elementary reflectors of order . as returned by zgerqf.
Arguments
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| integer, | intent(in) | :: | m | |||
| integer, | intent(in) | :: | n | |||
| integer, | intent(in) | :: | k | |||
| complex(kind=REAL64), | intent(inout) | :: | a(lda,*) | |||
| integer, | intent(in) | :: | lda | |||
| complex(kind=REAL64), | intent(in) | :: | tau(*) | |||
| complex(kind=REAL64), | intent(out) | :: | work(*) | |||
| integer, | intent(out) | :: | info |