Table 2: The errors by BGM when 9-point scheme is used with interpolation.

iter.

(16, 100) 23
(16, 145) 23
(32, 100) 24
(32, 125) 24
(32, 130) 24
(32, 145) 24
(64, 125) 25
(64, 130) 25
(64, 145) 25