SYNOPSIS
- SUBROUTINE SLA_LIN_BERR
- ( N, NZ, NRHS, RES, AYB, BERR )
- IMPLICIT NONE
- INTEGER N, NZ, NRHS
- REAL AYB( N, NRHS ), BERR( NRHS )
- REAL RES( N, NRHS )
PURPOSE
SLA_LIN_BERR computes component-wise 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 component-wise absolute value of the matrix
or vector Z.