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CentOS 7.0 - man page for dptts2.f (centos section 3)

dptts2.f(3)				      LAPACK				      dptts2.f(3)

NAME
       dptts2.f -

SYNOPSIS
   Functions/Subroutines
       subroutine dptts2 (N, NRHS, D, E, B, LDB)
	   DPTTS2 solves a tridiagonal system of the form AX=B using the L D LH factorization
	   computed by spttrf.

Function/Subroutine Documentation
   subroutine dptts2 (integerN, integerNRHS, double precision, dimension( * )D, double precision,
       dimension( * )E, double precision, dimension( ldb, * )B, integerLDB)
       DPTTS2 solves a tridiagonal system of the form AX=B using the L D LH factorization
       computed by spttrf.

       Purpose:

	    DPTTS2 solves a tridiagonal system of the form
	       A * X = B
	    using the L*D*L**T factorization of A computed by DPTTRF.  D is a
	    diagonal matrix specified in the vector D, L is a unit bidiagonal
	    matrix whose subdiagonal is specified in the vector E, and X and B
	    are N by NRHS matrices.

       Parameters:
	   N

		     N is INTEGER
		     The order of the tridiagonal 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.

	   D

		     D is DOUBLE PRECISION array, dimension (N)
		     The n diagonal elements of the diagonal matrix D from the
		     L*D*L**T factorization of A.

	   E

		     E is DOUBLE PRECISION array, dimension (N-1)
		     The (n-1) subdiagonal elements of the unit bidiagonal factor
		     L from the L*D*L**T factorization of A.  E can also be regarded
		     as the superdiagonal of the unit bidiagonal factor U from the
		     factorization A = U**T*D*U.

	   B

		     B is DOUBLE PRECISION array, dimension (LDB,NRHS)
		     On entry, the right hand side vectors B for the system of
		     linear equations.
		     On exit, the solution vectors, X.

	   LDB

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

       Author:
	   Univ. of Tennessee

	   Univ. of California Berkeley

	   Univ. of Colorado Denver

	   NAG Ltd.

       Date:
	   September 2012

       Definition at line 103 of file dptts2.f.

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

Version 3.4.2				 Tue Sep 25 2012			      dptts2.f(3)


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