Grid

51 × 51

−0.41156459

−0.375022428

0.0365

0.0981

−1.02567897

−0.93461058

0.0911

0.0981

71 × 71

0.77048108

0.706718997

0.0638

0.0914

0.79231412

0.72674521

0.0656

0.0915

151 × 151

0.98573361

0.947763396

0.0380

0.0426

−0.49973194

−0.48048240

0.0192

0.0426

201 × 201

0.94172500

0.946871908

0.0051

0.0060

0.57840883

0.58157006

0.0032

0.0060

271 × 271

0.37021916

0.402856751

0.0326

0.0974

−1.04131673

−1.13311659

0.0918

0.0974