Figure20						
h	5.0000E-01	2.5000E-01	1.2500E-01	6.2500E-02	3.1250E-02	1.5625E-02
error	3.4385E-04	8.0039E-05	1.6441E-05	3.1172E-06	7.1207E-07	1.4782E-07