节点 $\left(x_i,y_j\right)$

精确解

数值解

|精确解−数值解|

(1/5,1/5)

0.389418

0.389516

9.8e−04

(2/5,2/5)

0.717356

0.717453

9.7e−04

(3/5,3/5)

0.932039

0.932106

6.7e−04

(4/5,4/5)

0.999573

0.999600

2.7e−05