tfttr#

Functions

void stfttr(
    const char*          transr,
    const char*          uplo,
    const INT            n,
    const f32*  restrict ARF,
          f32*  restrict A,
    const INT            lda,
          INT*           info
);
void stfttr(const char *transr, const char *uplo, const INT n, const f32 *restrict ARF, f32 *restrict A, const INT lda, INT *info)#

STFTTR copies a triangular matrix A from rectangular full packed format (TF) to standard full format (TR).

Parameters

in
transr

= ‘N’: ARF is in Normal format; = ‘T’: ARF is in Transpose format.

in
uplo

= ‘U’: A is upper triangular; = ‘L’: A is lower triangular.

in
n

The order of the matrices ARF and A. n >= 0.

in
ARF

Double precision 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.

out
A

Double precision 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.

in
lda

The leading dimension of the array A. lda >= max(1,n).

out
info

  • = 0: successful exit

  • < 0: if info = -i, the i-th argument had an illegal value

Functions

void dtfttr(
    const char*          transr,
    const char*          uplo,
    const INT            n,
    const f64*  restrict ARF,
          f64*  restrict A,
    const INT            lda,
          INT*           info
);
void dtfttr(const char *transr, const char *uplo, const INT n, const f64 *restrict ARF, f64 *restrict A, const INT lda, INT *info)#

DTFTTR copies a triangular matrix A from rectangular full packed format (TF) to standard full format (TR).

Parameters

in
transr

= ‘N’: ARF is in Normal format; = ‘T’: ARF is in Transpose format.

in
uplo

= ‘U’: A is upper triangular; = ‘L’: A is lower triangular.

in
n

The order of the matrices ARF and A. n >= 0.

in
ARF

Double precision 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.

out
A

Double precision 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.

in
lda

The leading dimension of the array A. lda >= max(1,n).

out
info

  • = 0: successful exit

  • < 0: if info = -i, the i-th argument had an illegal value

Functions

void ctfttr(
    const char*          transr,
    const char*          uplo,
    const INT            n,
    const c64*  restrict ARF,
          c64*  restrict A,
    const INT            lda,
          INT*           info
);
void ctfttr(const char *transr, const char *uplo, const INT n, const c64 *restrict ARF, c64 *restrict A, const INT lda, INT *info)#

CTFTTR copies a triangular matrix A from rectangular full packed format (TF) to standard full format (TR).

Parameters

in
transr

= ‘N’: ARF is in Normal format; = ‘C’: ARF is in Conjugate-transpose format.

in
uplo

= ‘U’: A is upper triangular; = ‘L’: A is lower triangular.

in
n

The order of the matrices ARF and A. n >= 0.

in
ARF

Single complex 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.

out
A

Single complex 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.

in
lda

The leading dimension of the array A. lda >= max(1,n).

out
info

  • = 0: successful exit

  • < 0: if info = -i, the i-th argument had an illegal value

Functions

void ztfttr(
    const char*          transr,
    const char*          uplo,
    const INT            n,
    const c128* restrict ARF,
          c128* restrict A,
    const INT            lda,
          INT*           info
);
void ztfttr(const char *transr, const char *uplo, const INT n, const c128 *restrict ARF, c128 *restrict A, const INT lda, INT *info)#

ZTFTTR copies a triangular matrix A from rectangular full packed format (TF) to standard full format (TR).

Parameters

in
transr

= ‘N’: ARF is in Normal format; = ‘C’: ARF is in Conjugate-transpose format.

in
uplo

= ‘U’: A is upper triangular; = ‘L’: A is lower triangular.

in
n

The order of the matrices ARF and A. n >= 0.

in
ARF

Double complex 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.

out
A

Double complex 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.

in
lda

The leading dimension of the array A. lda >= max(1,n).

out
info

  • = 0: successful exit

  • < 0: if info = -i, the i-th argument had an illegal value

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