ZLA_LIN_BERLAPACK routine (version 3.2)ZLA_LIN_BERR(1)NAME
ZLA_LIN_BERR - ZLA_LIN_BERR compute componentwise relative backward
error from the formula max(i) ( abs(R(i)) / ( abs(op(A_s))*abs(Y) +
abs(B_s) )(i) ) where abs(Z) is the componentwise absolute value of
the matrix or vector Z
SYNOPSIS
SUBROUTINE ZLA_LIN_BERR ( N, NZ, NRHS, RES, AYB, BERR )
IMPLICIT NONE
INTEGER N, NZ, NRHS
DOUBLE PRECISION AYB( N, NRHS ), BERR( NRHS )
COMPLEX*16 RES( N, NRHS )
PURPOSE
ZLA_LIN_BERR computes componentwise relative backward error from
the formula
max(i) ( abs(R(i)) / ( abs(op(A_s))*abs(Y) + abs(B_s) )(i) )
where abs(Z) is the componentwise absolute value of the matrix
or vector Z.
LAPACK routine (version 3.2) November 2008 ZLA_LIN_BERR(1)
