laqhe

claqhe

Functions

void claqhe(
    const char*          uplo,
    const INT            n,
          c64*  restrict A,
    const INT            lda,
    const f32*  restrict S,
    const f32            scond,
    const f32            amax,
          char*          equed
);

void claqhe(const char *uplo, const INT n, c64 *restrict A, const INT lda, const f32 *restrict S, const f32 scond, const f32 amax, char *equed)

CLAQHE equilibrates a Hermitian matrix A using the scaling factors in the vector S.

Parameters

in

uplo

Specifies whether the upper or lower triangular part of the Hermitian matrix A is stored. = ‘U’: Upper triangular = ‘L’: Lower triangular

in

n

The order of the matrix A. n >= 0.

inout

A

Complex*16 array, dimension (lda, n). On entry, the Hermitian matrix A. If UPLO = ‘U’, the leading n by n upper triangular part of A contains the upper triangular part of the matrix A, and the strictly lower triangular part of A is not referenced. If UPLO = ‘L’, the leading n by n lower triangular part of A contains the lower triangular part of the matrix A, and the strictly upper triangular part of A is not referenced. On exit, if equed = ‘Y’, the equilibrated matrix: diag(S) * A * diag(S).

in

lda

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

in

S

Single precision array, dimension (n). The scale factors for A.

in

scond

Ratio of the smallest S(i) to the largest S(i).

in

amax

Absolute value of largest matrix entry.

out

equed

Specifies whether or not equilibration was done. = ‘N’: No equilibration. = ‘Y’: Equilibration was done, i.e., A has been replaced by diag(S) * A * diag(S).

zlaqhe

Functions

void zlaqhe(
    const char*          uplo,
    const INT            n,
          c128* restrict A,
    const INT            lda,
    const f64*  restrict S,
    const f64            scond,
    const f64            amax,
          char*          equed
);

void zlaqhe(const char *uplo, const INT n, c128 *restrict A, const INT lda, const f64 *restrict S, const f64 scond, const f64 amax, char *equed)

ZLAQHE equilibrates a Hermitian matrix A using the scaling factors in the vector S.

Parameters

in

uplo

Specifies whether the upper or lower triangular part of the Hermitian matrix A is stored. = ‘U’: Upper triangular = ‘L’: Lower triangular

in

n

The order of the matrix A. n >= 0.

inout

A

Complex*16 array, dimension (lda, n). On entry, the Hermitian matrix A. If UPLO = ‘U’, the leading n by n upper triangular part of A contains the upper triangular part of the matrix A, and the strictly lower triangular part of A is not referenced. If UPLO = ‘L’, the leading n by n lower triangular part of A contains the lower triangular part of the matrix A, and the strictly upper triangular part of A is not referenced. On exit, if equed = ‘Y’, the equilibrated matrix: diag(S) * A * diag(S).

in

lda

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

in

S

Double precision array, dimension (n). The scale factors for A.

in

scond

Ratio of the smallest S(i) to the largest S(i).

in

amax

Absolute value of largest matrix entry.

out

equed

Specifies whether or not equilibration was done. = ‘N’: No equilibration. = ‘Y’: Equilibration was done, i.e., A has been replaced by diag(S) * A * diag(S).