centos man page for dpocon

Query: dpocon

OS: centos

Section: 3

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

dpocon.f(3)							      LAPACK							       dpocon.f(3)

NAME
dpocon.f -
SYNOPSIS
Functions/Subroutines subroutine dpocon (UPLO, N, A, LDA, ANORM, RCOND, WORK, IWORK, INFO) DPOCON Function/Subroutine Documentation subroutine dpocon (characterUPLO, integerN, double precision, dimension( lda, * )A, integerLDA, double precisionANORM, double precisionRCOND, double precision, dimension( * )WORK, integer, dimension( * )IWORK, integerINFO) DPOCON Purpose: DPOCON estimates the reciprocal of the condition number (in the 1-norm) of a real symmetric positive definite matrix using the Cholesky factorization A = U**T*U or A = L*L**T computed by DPOTRF. An estimate is obtained for norm(inv(A)), and the reciprocal of the condition number is computed as RCOND = 1 / (ANORM * norm(inv(A))). Parameters: UPLO UPLO is CHARACTER*1 = 'U': Upper triangle of A is stored; = 'L': Lower triangle of A is stored. N N is INTEGER The order of the matrix A. N >= 0. A A is DOUBLE PRECISION array, dimension (LDA,N) The triangular factor U or L from the Cholesky factorization A = U**T*U or A = L*L**T, as computed by DPOTRF. LDA LDA is INTEGER The leading dimension of the array A. LDA >= max(1,N). ANORM ANORM is DOUBLE PRECISION The 1-norm (or infinity-norm) of the symmetric matrix A. RCOND RCOND is DOUBLE PRECISION The reciprocal of the condition number of the matrix A, computed as RCOND = 1/(ANORM * AINVNM), where AINVNM is an estimate of the 1-norm of inv(A) computed in this routine. WORK WORK is DOUBLE PRECISION array, dimension (3*N) IWORK IWORK is INTEGER array, dimension (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 121 of file dpocon.f. Author Generated automatically by Doxygen for LAPACK from the source code. Version 3.4.2 Tue Sep 25 2012 dpocon.f(3)
Related Man Pages
zpocon(3) - debian
dppcon(3) - centos
dsycon(3) - centos
zpocon(3) - centos
dsycon.f(3) - centos
Similar Topics in the Unix Linux Community
Is UNIX an open source OS ?
Set hard block limit for user using quota
Best performance UNIX just for HOST Virtualization?
DB2 convert digits to binary format
Tar Command