Visible to Intel only — GUID: GUID-0655BC29-1256-4DC0-B9A4-502E26CBC9A4
Visible to Intel only — GUID: GUID-0655BC29-1256-4DC0-B9A4-502E26CBC9A4
?trttf
Copies a triangular matrix from the standard full format (TR) to the rectangular full packed format (TF).
Syntax
call strttf( transr, uplo, n, a, lda, arf, info )
call dtrttf( transr, uplo, n, a, lda, arf, info )
call ctrttf( transr, uplo, n, a, lda, arf, info )
call ztrttf( transr, uplo, n, a, lda, arf, info )
Include Files
- mkl.fi
Description
The routine copies a triangular matrix A from the standard full format to the Rectangular Full Packed (RFP) format. For the description of the RFP format, see Matrix Storage Schemes.
Input Parameters
- transr
-
CHARACTER*1.
= 'N': arf must be in the Normal format,
= 'T': arf must be in the Transpose format (for strttf and dtrttf),
= 'C': arf must be in the Conjugate-transpose format (for ctrttf and ztrttf).
- uplo
-
CHARACTER*1.
Specifies whether A is upper or lower triangular:
= 'U': A is upper triangular,
= 'L': A is lower triangular.
- n
-
INTEGER. The order of the matrix A. n≥ 0.
- a
-
REAL for strttf,
DOUBLE PRECISION for dtrttf,
COMPLEX for ctrttf,
DOUBLE COMPLEX for ztrttf.
Array, size (lda, n).
On entry, the triangular matrix A. If uplo = 'U', the leading n-by-n upper triangular part of the array a contains the upper triangular matrix, and the strictly lower triangular part of a is not referenced. If uplo = 'L', the leading n-by-n lower triangular part of the array a contains the lower triangular matrix, and the strictly upper triangular part of a is not referenced.
- lda
-
INTEGER. The leading dimension of the array a. lda ≥ max(1,n).
Output Parameters
- arf
-
REAL for strttf,
DOUBLE PRECISION for dtrttf,
COMPLEX for ctrttf,
DOUBLE COMPLEX for ztrttf.
Array, size at least max (1, n*(n+1)/2).
On exit, the upper or lower triangular matrix A stored in the RFP format. - info
-
INTEGER. If info = 0, the execution is successful.
If info < 0, the i-th parameter had an illegal value.
If info = -1011, memory allocation error occurred.