ZSYTRS(l)		LAPACK routine (version	1.1)		    ZSYTRS(l)

NAME
  ZSYTRS - solve a system of linear equations A*X = B with a complex sym-
  metric matrix	A using	the factorization A = U*D*U**T or A = L*D*L**T com-
  puted	by ZSYTRF

SYNOPSIS

  SUBROUTINE ZSYTRS( UPLO, N, NRHS, A, LDA, IPIV, B, LDB, INFO )

      CHARACTER	     UPLO

      INTEGER	     INFO, LDA,	LDB, N,	NRHS

      INTEGER	     IPIV( * )

      COMPLEX*16     A(	LDA, * ), B( LDB, * )

PURPOSE
  ZSYTRS solves	a system of linear equations A*X = B with a complex symmetric
  matrix A using the factorization A = U*D*U**T	or A = L*D*L**T	computed by
  ZSYTRF.

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.

  A	  (input) COMPLEX*16 array, dimension (LDA,N)
	  The block diagonal matrix D and the multipliers used to obtain the
	  factor U or L	as computed by ZSYTRF.

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

  IPIV	  (input) INTEGER array, dimension (N)
	  Details of the interchanges and the block structure of D as deter-
	  mined	by ZSYTRF.

  B	  (input/output) COMPLEX*16 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