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RedHat 9 (Linux i386) - man page for csptrs (redhat section l)

CSPTRS(l)					)					CSPTRS(l)

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

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

	   CHARACTER	  UPLO

	   INTEGER	  INFO, LDB, N, NRHS

	   INTEGER	  IPIV( * )

	   COMPLEX	  AP( * ), B( LDB, * )

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

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) COMPLEX 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 CSPTRF, stored as a packed triangular matrix.

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

       B       (input/output) COMPLEX 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 				CSPTRS(l)


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