Analysis of the Block-Grid Method for the Solution of Laplace's Equation on Polygons with a Slit

Table 4

The order of convergence 𝑅_𝐺^6,𝜚_NS, and 𝑅_𝐺^6,𝜚_S when ℎ=2^−𝜚.

(2^−𝜚,𝑛)	ℜ𝐺^6,𝜚NS	ℜ𝐺^6,𝜚S
(2^−4,100)	58.253	68.386
(2^−5,100)
(2^−4,145)	58.788	97.005
(2^−5,145)
(2^−5,125)	61.164	65.711
(2^−6,125)
(2^−5,130)	64.140	74.926
(2^−6,130)
(2^−5,145)	63.241	88.92
(2^−6,145)