tfttp#

stfttp

Functions

void stfttp(
    const char*          transr,
    const char*          uplo,
    const INT            n,
    const f32*  restrict ARF,
          f32*  restrict AP,
          INT*           info
);

void stfttp(const char *transr, const char *uplo, const INT n, const f32 *restrict ARF, f32 *restrict AP, INT *info)#

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

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 matrix A. n >= 0.

in

ARF

Double precision array, dimension ( n*(n+1)/2 ), On entry, the upper or lower triangular matrix A stored in RFP format. For a further discussion see Notes below.

out

AP

Double precision array, dimension ( n*(n+1)/2 ), On exit, the upper or lower triangular matrix A, packed columnwise in a linear array. The j-th column of A is stored in the array AP as follows: if UPLO = ‘U’, AP(i + (j-1)*j/2) = A(i,j) for 1<=i<=j; if UPLO = ‘L’, AP(i + (j-1)*(2n-j)/2) = A(i,j) for j<=i<=n.

out

info

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

dtfttp

Functions

void dtfttp(
    const char*          transr,
    const char*          uplo,
    const INT            n,
    const f64*  restrict ARF,
          f64*  restrict AP,
          INT*           info
);

void dtfttp(const char *transr, const char *uplo, const INT n, const f64 *restrict ARF, f64 *restrict AP, INT *info)#

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

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 matrix A. n >= 0.

in

ARF

Double precision array, dimension ( n*(n+1)/2 ), On entry, the upper or lower triangular matrix A stored in RFP format. For a further discussion see Notes below.

out

AP

Double precision array, dimension ( n*(n+1)/2 ), On exit, the upper or lower triangular matrix A, packed columnwise in a linear array. The j-th column of A is stored in the array AP as follows: if UPLO = ‘U’, AP(i + (j-1)*j/2) = A(i,j) for 1<=i<=j; if UPLO = ‘L’, AP(i + (j-1)*(2n-j)/2) = A(i,j) for j<=i<=n.

out

info

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

ctfttp

Functions

void ctfttp(
    const char*          transr,
    const char*          uplo,
    const INT            n,
    const c64*  restrict ARF,
          c64*  restrict AP,
          INT*           info
);

void ctfttp(const char *transr, const char *uplo, const INT n, const c64 *restrict ARF, c64 *restrict AP, INT *info)#

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

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 matrix A. n >= 0.

in

ARF

Single complex array, dimension ( n*(n+1)/2 ), On entry, the upper or lower triangular matrix A stored in RFP format. For a further discussion see Notes below.

out

AP

Single complex array, dimension ( n*(n+1)/2 ), On exit, the upper or lower triangular matrix A, packed columnwise in a linear array. The j-th column of A is stored in the array AP as follows: if UPLO = ‘U’, AP(i + (j-1)*j/2) = A(i,j) for 1<=i<=j; if UPLO = ‘L’, AP(i + (j-1)*(2n-j)/2) = A(i,j) for j<=i<=n.

out

info

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

ztfttp

Functions

void ztfttp(
    const char*          transr,
    const char*          uplo,
    const INT            n,
    const c128* restrict ARF,
          c128* restrict AP,
          INT*           info
);

void ztfttp(const char *transr, const char *uplo, const INT n, const c128 *restrict ARF, c128 *restrict AP, INT *info)#

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

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 matrix A. n >= 0.

in

ARF

Double complex array, dimension ( n*(n+1)/2 ), On entry, the upper or lower triangular matrix A stored in RFP format. For a further discussion see Notes below.

out

AP

Double complex array, dimension ( n*(n+1)/2 ), On exit, the upper or lower triangular matrix A, packed columnwise in a linear array. The j-th column of A is stored in the array AP as follows: if UPLO = ‘U’, AP(i + (j-1)*j/2) = A(i,j) for 1<=i<=j; if UPLO = ‘L’, AP(i + (j-1)*(2n-j)/2) = A(i,j) for j<=i<=n.

out

info

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

tfttp#

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