SYNOPSIS
- DOUBLE PRECISION
- FUNCTION ZLA_PORCOND_X( UPLO, N, A, LDA, AF, LDAF, X, INFO, WORK, RWORK )
- IMPLICIT NONE
- CHARACTER UPLO
- INTEGER N, LDA, LDAF, INFO
- COMPLEX*16 A( LDA, * ), AF( LDAF, * ), WORK( * ), X( * )
- DOUBLE PRECISION RWORK( * )
PURPOSE
ZLA_PORCOND_X Computes the infinity norm condition number of
op(A) * diag(X) where X is a COMPLEX*16 vector.
ARGUMENTS
- C COMPLEX*16 vector.
- WORK COMPLEX*16 workspace of size 2*N.
-
RWORK DOUBLE PRECISION workspace of size 3*N.