zla_gbrcond_c(3) centos man page | unix.com

zla_gbrcond_c.f(3)						      LAPACK							zla_gbrcond_c.f(3)

NAME
       zla_gbrcond_c.f -

SYNOPSIS
   Functions/Subroutines
       DOUBLE PRECISION function zla_gbrcond_c (TRANS, N, KL, KU, AB, LDAB, AFB, LDAFB, IPIV, C, CAPPLY, INFO, WORK, RWORK)
	   ZLA_GBRCOND_C computes the infinity norm condition number of op(A)*inv(diag(c)) for general banded matrices.

Function/Subroutine Documentation
   DOUBLE PRECISION function zla_gbrcond_c (characterTRANS, integerN, integerKL, integerKU, complex*16, dimension( ldab, * )AB, integerLDAB,
       complex*16, dimension( ldafb, * )AFB, integerLDAFB, integer, dimension( * )IPIV, double precision, dimension( * )C, logicalCAPPLY,
       integerINFO, complex*16, dimension( * )WORK, double precision, dimension( * )RWORK)
       ZLA_GBRCOND_C computes the infinity norm condition number of op(A)*inv(diag(c)) for general banded matrices.

       Purpose:

	       ZLA_GBRCOND_C Computes the infinity norm condition number of
	       op(A) * inv(diag(C)) where C is a DOUBLE PRECISION vector.

       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**H * X = B	(Conjugate Transpose = Transpose)

	   N

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

	   AB

		     AB is COMPLEX*16 array, dimension (LDAB,N)
		On entry, the matrix A in band storage, in rows 1 to KL+KU+1.
		The j-th column of A is stored in the j-th column of the
		array AB as follows:
		AB(KU+1+i-j,j) = A(i,j) for max(1,j-KU)<=i<=min(N,j+kl)

	   LDAB

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

	   AFB

		     AFB is COMPLEX*16 array, dimension (LDAFB,N)
		Details of the LU factorization of the band matrix A, as
		computed by ZGBTRF.  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.

	   LDAFB

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

	   IPIV

		     IPIV is INTEGER array, dimension (N)
		The pivot indices from the factorization A = P*L*U
		as computed by ZGBTRF; row i of the matrix was interchanged
		with row IPIV(i).

	   C

		     C is DOUBLE PRECISION array, dimension (N)
		The vector C in the formula op(A) * inv(diag(C)).

	   CAPPLY

		     CAPPLY is LOGICAL
		If .TRUE. then access the vector C in the formula above.

	   INFO

		     INFO is INTEGER
		  = 0:	Successful exit.
		i > 0:	The ith argument is invalid.

	   WORK

		     WORK is COMPLEX*16 array, dimension (2*N).
		Workspace.

	   RWORK

		     RWORK is DOUBLE PRECISION array, dimension (N).
		Workspace.

       Author:
	   Univ. of Tennessee

	   Univ. of California Berkeley

	   Univ. of Colorado Denver

	   NAG Ltd.

       Date:
	   September 2012

       Definition at line 161 of file zla_gbrcond_c.f.

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

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