ssptrs(l) [redhat man page]

SSPTRS(l)								 )								 SSPTRS(l)

NAME

       SSPTRS  -  solve  a  system  of linear equations A*X = B with a real symmetric matrix A stored in packed format using the factorization A =
       U*D*U**T or A = L*D*L**T computed by SSPTRF

SYNOPSIS

       SUBROUTINE SSPTRS( UPLO, N, NRHS, AP, IPIV, B, LDB, INFO )

	   CHARACTER	  UPLO

	   INTEGER	  INFO, LDB, N, NRHS

	   INTEGER	  IPIV( * )

	   REAL 	  AP( * ), B( LDB, * )

PURPOSE

       SSPTRS solves a system of linear equations A*X = B with a real symmetric matrix A stored in packed  format  using  the  factorization  A  =
       U*D*U**T or A = L*D*L**T computed by SSPTRF.

ARGUMENTS

       UPLO    (input) CHARACTER*1
	       Specifies  whether  the	details of the factorization are stored as an upper or lower triangular matrix.  = 'U':  Upper triangular,
	       form is A = U*D*U**T;
	       = 'L':  Lower triangular, form is A = L*D*L**T.

       N       (input) INTEGER
	       The order of the matrix A.  N >= 0.

       NRHS    (input) INTEGER
	       The number of right hand sides, i.e., the number of columns of the matrix B.  NRHS >= 0.

       AP      (input) REAL array, dimension (N*(N+1)/2)
	       The block diagonal matrix D and the multipliers used to obtain the factor U or L as computed by SSPTRF, stored as a packed triangu-
	       lar matrix.

       IPIV    (input) INTEGER array, dimension (N)
	       Details of the interchanges and the block structure of D as determined by SSPTRF.

       B       (input/output) REAL array, dimension (LDB,NRHS)
	       On entry, the right hand side matrix B.	On exit, the solution matrix X.

       LDB     (input) INTEGER
	       The leading dimension of the array B.  LDB >= max(1,N).

       INFO    (output) INTEGER
	       = 0:  successful exit
	       < 0: if INFO = -i, the i-th argument had an illegal value

LAPACK version 3.0						   15 June 2000 							 SSPTRS(l)

ssptrs.f(3)							      LAPACK							       ssptrs.f(3)

NAME

       ssptrs.f -

SYNOPSIS

   Functions/Subroutines
       subroutine ssptrs (UPLO, N, NRHS, AP, IPIV, B, LDB, INFO)
	   SSPTRS

Function/Subroutine Documentation
   subroutine ssptrs (characterUPLO, integerN, integerNRHS, real, dimension( * )AP, integer, dimension( * )IPIV, real, dimension( ldb, * )B,
       integerLDB, integerINFO)
       SSPTRS

       Purpose:

	    SSPTRS solves a system of linear equations A*X = B with a real
	    symmetric matrix A stored in packed format using the factorization
	    A = U*D*U**T or A = L*D*L**T computed by SSPTRF.

       Parameters:
	   UPLO

		     UPLO is CHARACTER*1
		     Specifies whether the details of the factorization are stored
		     as an upper or lower triangular matrix.
		     = 'U':  Upper triangular, form is A = U*D*U**T;
		     = 'L':  Lower triangular, form is A = L*D*L**T.

	   N

		     N is INTEGER
		     The order of the matrix A.  N >= 0.

	   NRHS

		     NRHS is INTEGER
		     The number of right hand sides, i.e., the number of columns
		     of the matrix B.  NRHS >= 0.

	   AP

		     AP is REAL array, dimension (N*(N+1)/2)
		     The block diagonal matrix D and the multipliers used to
		     obtain the factor U or L as computed by SSPTRF, stored as a
		     packed triangular matrix.

	   IPIV

		     IPIV is INTEGER array, dimension (N)
		     Details of the interchanges and the block structure of D
		     as determined by SSPTRF.

	   B

		     B is REAL array, dimension (LDB,NRHS)
		     On entry, the right hand side matrix B.
		     On exit, the solution matrix X.

	   LDB

		     LDB is INTEGER
		     The leading dimension of the array B.  LDB >= max(1,N).

	   INFO

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

       Author:
	   Univ. of Tennessee

	   Univ. of California Berkeley

	   Univ. of Colorado Denver

	   NAG Ltd.

       Date:
	   November 2011

       Definition at line 116 of file ssptrs.f.

Author
       Generated automatically by Doxygen for LAPACK from the source code.

Version 3.4.1							  Sun May 26 2013						       ssptrs.f(3)