Theory and Modern Applications
From: A fourth-order accurate difference Dirichlet problem for the approximate solution of Laplace’s equation with integral boundary condition
h
Max error
Order of reduction
1/16
1.40629393 × 10−9
1/32
8.77042882 × 10−11
16.03449
1/64
5.47739631 × 10−12
16.01203
1/128
3.42279360 × 10−13
16.00270