negatively concatenating files Post: 302213625

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zgesv.f

zgesv.f(3)							      LAPACK								zgesv.f(3)

NAME

       zgesv.f -

SYNOPSIS

   Functions/Subroutines
       subroutine zgesv (N, NRHS, A, LDA, IPIV, B, LDB, INFO)
	    ZGESV computes the solution to system of linear equations A * X = B for GE matrices (simple driver)

Function/Subroutine Documentation
   subroutine zgesv (integerN, integerNRHS, complex*16, dimension( lda, * )A, integerLDA, integer, dimension( * )IPIV, complex*16, dimension( ldb,
       * )B, integerLDB, integerINFO)
	ZGESV computes the solution to system of linear equations A * X = B for GE matrices (simple driver)

       Purpose:

	    ZGESV computes the solution to a complex system of linear equations
	       A * X = B,
	    where A is an N-by-N matrix and X and B are N-by-NRHS matrices.

	    The LU decomposition with partial pivoting and row interchanges is
	    used to factor A as
	       A = P * L * U,
	    where P is a permutation matrix, L is unit lower triangular, and U is
	    upper triangular.  The factored form of A is then used to solve the
	    system of equations A * X = B.

       Parameters:
	   N

		     N is INTEGER
		     The number of linear equations, i.e., the order of the
		     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.

	   A

		     A is COMPLEX*16 array, dimension (LDA,N)
		     On entry, the N-by-N coefficient matrix A.
		     On exit, the factors L and U from the factorization
		     A = P*L*U; the unit diagonal elements of L are not stored.

	   LDA

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

	   IPIV

		     IPIV is INTEGER array, dimension (N)
		     The pivot indices that define the permutation matrix P;
		     row i of the matrix was interchanged with row IPIV(i).

	   B

		     B is COMPLEX*16 array, dimension (LDB,NRHS)
		     On entry, the N-by-NRHS matrix of right hand side matrix B.
		     On exit, if INFO = 0, the N-by-NRHS 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
		     > 0:  if INFO = i, U(i,i) is exactly zero.  The factorization
			   has been completed, but the factor U is exactly
			   singular, so the solution could not be computed.

       Author:
	   Univ. of Tennessee

	   Univ. of California Berkeley

	   Univ. of Colorado Denver

	   NAG Ltd.

       Date:
	   November 2011

       Definition at line 123 of file zgesv.f.

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

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