Example (from Program LA_PPSVX_EXAMPLE)

The results below are computed with $\epsilon = 1.19209 \times 10^{-7}$.
$A$ and $B$ are the same as in Example 2 for LA_PPSV.

The call:

 CALL LA_PPSVX( AP, B, X, 'L', FERR=FERR, BERR=BERR, & 


RCOND=RCOND ) 

${\bf FERR, BERR}$ and ${\bf RCOND}$ on exit:

$${\bf FERR} = 1.49613 \times 10^{-6} \ \ {\bf BERR} = 4.32426 \times 10^{-8} \ \ {\bf RCOND} = 2.91388 \times 10^{-1}$$

The forward and backward errors are $1.49613 \times 10^{-6}$ and $4.32426 \times 10^{-8}$, respectively.

The estimate of the reciprocal condition number is $2.91388 \times 10^{-1}$.

The solution of the system $A\,x = b$ is:

$$x = \left( \begin{array}{r} 1.00000 \\ 1.00000 \\ 1.00000 \\ 1.00000 \\ 1.00000 \end{array} \right).$$