DPPTRS(l)		LAPACK routine (version	1.1)		    DPPTRS(l)

NAME
  DPPTRS - solve a system of linear equations A*X = B with a symmetric posi-
  tive definite	matrix A in packed storage using the Cholesky factorization A
  = U**T*U or A	= L*L**T computed by DPPTRF

SYNOPSIS

  SUBROUTINE DPPTRS( UPLO, N, NRHS, AP,	B, LDB,	INFO )

      CHARACTER	     UPLO

      INTEGER	     INFO, LDB,	N, NRHS

      DOUBLE	     PRECISION AP( * ),	B( LDB,	* )

PURPOSE
  DPPTRS solves	a system of linear equations A*X = B with a symmetric posi-
  tive definite	matrix A in packed storage using the Cholesky factorization A
  = U**T*U or A	= L*L**T computed by DPPTRF.

ARGUMENTS

  UPLO	  (input) CHARACTER*1
	  = 'U':  Upper	triangle of A is stored;
	  = 'L':  Lower	triangle of A is stored.

  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) DOUBLE PRECISION array, dimension (N*(N+1)/2)
	  The triangular factor	U or L from the	Cholesky factorization A =
	  U**T*U or A =	L*L**T,	packed columnwise in a linear array.  The j-
	  th column of U or L is stored	in the array AP	as follows: if UPLO =
	  'U', AP(i + (j-1)*j/2) = U(i,j) for 1<=i<=j; if UPLO = 'L', AP(i +
	  (j-1)*(2n-j)/2) = L(i,j) for j<=i<=n.

  B	  (input/output) DOUBLE	PRECISION 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