dsytrs
dsytrs - solve a system of linear equations A*X = B with a real symmetric matrix A using the factorization A = U*D*U**T or A = L*D*L**T computed by SSYTRF
SUBROUTINE DSYTRS( UPLO, N, NRHS, A, LDA, IPIVOT, B, LDB, INFO)
CHARACTER * 1 UPLO
INTEGER N, NRHS, LDA, LDB, INFO
INTEGER IPIVOT(*)
DOUBLE PRECISION A(LDA,*), B(LDB,*)
SUBROUTINE DSYTRS_64( UPLO, N, NRHS, A, LDA, IPIVOT, B, LDB, INFO)
CHARACTER * 1 UPLO
INTEGER*8 N, NRHS, LDA, LDB, INFO
INTEGER*8 IPIVOT(*)
DOUBLE PRECISION A(LDA,*), B(LDB,*)
SUBROUTINE SYTRS( UPLO, N, NRHS, A, [LDA], IPIVOT, B, [LDB], [INFO])
CHARACTER(LEN=1) :: UPLO
INTEGER :: N, NRHS, LDA, LDB, INFO
INTEGER, DIMENSION(:) :: IPIVOT
REAL(8), DIMENSION(:,:) :: A, B
SUBROUTINE SYTRS_64( UPLO, N, NRHS, A, [LDA], IPIVOT, B, [LDB],
* [INFO])
CHARACTER(LEN=1) :: UPLO
INTEGER(8) :: N, NRHS, LDA, LDB, INFO
INTEGER(8), DIMENSION(:) :: IPIVOT
REAL(8), DIMENSION(:,:) :: A, B
#include <sunperf.h>
void dsytrs(char uplo, int n, int nrhs, double *a, int lda, int *ipivot, double *b, int ldb, int *info);
void dsytrs_64(char uplo, long n, long nrhs, double *a, long lda, long *ipivot, double *b, long ldb, long *info);
dsytrs solves a system of linear equations A*X = B with a real
symmetric matrix A using the factorization A = U*D*U**T or
A = L*D*L**T computed by SSYTRF.
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* UPLO (input)
-
Specifies whether the details of the factorization are stored
as an upper or lower triangular matrix.
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* N (input)
-
The order of the matrix A. N >= 0.
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* NRHS (input)
-
The number of right hand sides, i.e., the number of columns
of the matrix B. NRHS >= 0.
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* A (input)
-
The block diagonal matrix D and the multipliers used to
obtain the factor U or L as computed by SSYTRF.
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* LDA (input)
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The leading dimension of the array A. LDA >= max(1,N).
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* IPIVOT (input)
-
Details of the interchanges and the block structure of D
as determined by SSYTRF.
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* B (input/output)
-
On entry, the right hand side matrix B.
On exit, the solution matrix X.
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* LDB (input)
-
The leading dimension of the array B. LDB >= max(1,N).
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* INFO (output)
-