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DGTSL(3F)							     DGTSL(3F)

NAME
     DGTSL   - DGTSL given a general tridiagonal matrix and a right hand side
     will find the solution.

SYNOPSYS
      SUBROUTINE DGTSL(N,C,D,E,B,INFO)

DESCRIPTION
     On Entry

     N INTEGER
	is the order of the tridiagonal matrix.

     C DOUBLE PRECISION(N)
	is the subdiagonal of the tridiagonal matrix.
	C(2) through C(N) should contain the subdiagonal.
	On output C is destroyed.

     D DOUBLE PRECISION(N)
	is the diagonal of the tridiagonal matrix.
	On output D is destroyed.

     E DOUBLE PRECISION(N)
	is the superdiagonal of the tridiagonal matrix.
	E(1) through E(N-1) should contain the superdiagonal.
	On output E is destroyed.

     B DOUBLE PRECISION(N)
	is the right hand side vector.	On Return

     B is the solution vector.

     INFO INTEGER
	= 0 normal value.
	= K if the K-th element of the diagonal becomes
	exactly zero.  The subroutine returns when
	this is detected.  LINPACK.  This version dated 08/14/78 .  Jack
     Dongarra, Argonne National Laboratory.  No externals Fortran DABS

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