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template<typename T>
void tfttr(char *transr, char *uplo, integer *n, T *arf, T *a, integer *lda, integer *info)# TFTTR copies a triangular matrix from the rectangular full
packed format (TF) to the standard full format (TR).
Purpose:
TFTTR copies a triangular matrix A from rectangular full packed format (TF) to standard full format (TR).
- Parameters:
TRANSR – [in]
TRANSR is CHARACTER*1
= ‘N’: ARF is in Normal format;
= ‘T’: ARF is in Transpose format.UPLO – [in]
UPLO is CHARACTER*1
= ‘U’: A is upper triangular;
= ‘L’: A is lower triangular.N – [in]
N is INTEGER
The order of the matrices ARF and A. N >= 0.
ARF – [in]
ARF is REAL array, dimension (N*(N+1)/2).
On entry, the upper (if UPLO = ‘U’) or lower (if UPLO = ‘L’) matrix A in RFP format. See the “Notes” below for more details.
A – [out]
A is REAL array, dimension (LDA,N)
On exit, 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 – [in]
LDA is INTEGER
The leading dimension of the array A. LDA >= fla_max(1,N).
INFO – [out]
INFO is INTEGER
= 0: successful exit
< 0: if INFO = -i, the i-th argument had an illegal value