.  \[tab0\]              $h$             $Err({\lambda}_0)$   $Order({\lambda}_0)$        ------------------------ -------------------- ---------------------- -- --    $0.00 \cdot 00^{-0}  $        $0.0000$                                     $0.00 \cdot 00^{-0}  $        $0.0000$              $0.0000$               $0.00 \cdot 00^{-0}  $        $0.0000$              $0.0000$               $0.00  \cdot 00^{-0} $        $0.0000$              $0.0000$               : Space step (first column), eigenvalue error (second column), convergence order (third column) 