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

dgbtrs.f(3)				      LAPACK				      dgbtrs.f(3)

NAME
       dgbtrs.f -

SYNOPSIS
   Functions/Subroutines
       subroutine dgbtrs (TRANS, N, KL, KU, NRHS, AB, LDAB, IPIV, B, LDB, INFO)
	   DGBTRS

Function/Subroutine Documentation
   subroutine dgbtrs (characterTRANS, integerN, integerKL, integerKU, integerNRHS, double
       precision, dimension( ldab, * )AB, integerLDAB, integer, dimension( * )IPIV, double
       precision, dimension( ldb, * )B, integerLDB, integerINFO)
       DGBTRS

       Purpose:

	    DGBTRS solves a system of linear equations
	       A * X = B  or  A**T * X = B
	    with a general band matrix A using the LU factorization computed
	    by DGBTRF.

       Parameters:
	   TRANS

		     TRANS is CHARACTER*1
		     Specifies the form of the system of equations.
		     = 'N':  A * X = B	(No transpose)
		     = 'T':  A**T* X = B  (Transpose)
		     = 'C':  A**T* X = B  (Conjugate transpose = Transpose)

	   N

		     N is INTEGER
		     The order of the matrix A.  N >= 0.

	   KL

		     KL is INTEGER
		     The number of subdiagonals within the band of A.  KL >= 0.

	   KU

		     KU is INTEGER
		     The number of superdiagonals within the band of A.  KU >= 0.

	   NRHS

		     NRHS is INTEGER
		     The number of right hand sides, i.e., the number of columns
		     of the matrix B.  NRHS >= 0.

	   AB

		     AB is DOUBLE PRECISION array, dimension (LDAB,N)
		     Details of the LU factorization of the band matrix A, as
		     computed by DGBTRF.  U is stored as an upper triangular band
		     matrix with KL+KU superdiagonals in rows 1 to KL+KU+1, and
		     the multipliers used during the factorization are stored in
		     rows KL+KU+2 to 2*KL+KU+1.

	   LDAB

		     LDAB is INTEGER
		     The leading dimension of the array AB.  LDAB >= 2*KL+KU+1.

	   IPIV

		     IPIV is INTEGER array, dimension (N)
		     The pivot indices; for 1 <= i <= N, row i of the matrix was
		     interchanged with row IPIV(i).

	   B

		     B is DOUBLE PRECISION array, dimension (LDB,NRHS)
		     On entry, the right hand side matrix B.
		     On exit, the solution matrix X.

	   LDB

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

	   INFO

		     INFO is INTEGER
		     = 0:  successful exit
		     < 0: if INFO = -i, the i-th argument had an illegal value

       Author:
	   Univ. of Tennessee

	   Univ. of California Berkeley

	   Univ. of Colorado Denver

	   NAG Ltd.

       Date:
	   November 2011

       Definition at line 138 of file dgbtrs.f.

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

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


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