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| int PLASMA_zunmqr |
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PLASMA_enum |
side, |
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PLASMA_enum |
trans, |
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int |
M, |
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int |
N, |
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int |
K, |
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PLASMA_Complex64_t * |
A, |
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int |
LDA, |
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PLASMA_desc * |
descT, |
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PLASMA_Complex64_t * |
C, |
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int |
LDC |
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) |
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PLASMA_zunmqr - Overwrites the general complex M-by-N matrix C with
SIDE = 'L' SIDE = 'R'
TRANS = 'N': Q * C C * Q TRANS = 'C': Q**H * C C * Q**H
where Q is a complex unitary matrix defined as the product of k elementary reflectors
Q = H(1) H(2) . . . H(k)
as returned by PLASMA_zgeqrf. Q is of order M if SIDE = PlasmaLeft and of order N if SIDE = PlasmaRight.
- Parameters
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| [in] | side | Intended usage: = PlasmaLeft: apply Q or Q**H from the left; = PlasmaRight: apply Q or Q**H from the right. |
| [in] | trans | Intended usage: = PlasmaNoTrans: no transpose, apply Q; = PlasmaConjTrans: conjugate transpose, apply Q**H. |
| [in] | M | The number of rows of the matrix C. M >= 0. |
| [in] | N | The number of columns of the matrix C. N >= 0. |
| [in] | K | The number of elementary reflectors whose product defines the matrix Q. If side == PlasmaLeft, M >= K >= 0. If side == PlasmaRight, N >= K >= 0. |
| [in] | A | Details of the QR factorization of the original matrix A as returned by PLASMA_zgeqrf. |
| [in] | LDA | The leading dimension of the array A. If side == PlasmaLeft, LDA >= max(1,M). If side == PlasmaRight, LDA >= max(1,N). |
| [in] | descT | Auxiliary factorization data, computed by PLASMA_zgeqrf. |
| [in,out] | C | On entry, the M-by-N matrix C. On exit, C is overwritten by Q*C or Q**H*C. |
| [in] | LDC | The leading dimension of the array C. LDC >= max(1,M). |
- Returns
- Return values
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| PLASMA_SUCCESS | successful exit |
| <0 | if -i, the i-th argument had an illegal value |
- See Also
- PLASMA_zunmqr_Tile
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PLASMA_zunmqr_Tile_Async
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PLASMA_cunmqr
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PLASMA_dormqr
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PLASMA_sormqr
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PLASMA_zgeqrf
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