Advances in Continuous and Discrete Models

Theory and Modern Applications

Table 6 The errors for finite difference solutions in the sense of pointwise

From: Error estimate of a high accuracy difference scheme for Poisson equation with two integral boundary conditions

(x,y)	(0.25, 0.25)		(0.25, 0.5)		(0.5, 0.25)		(0.5, 0.5)
h		ratio		ratio		ratio		ratio
1/16	2.168E–04		2.269E–04		3.187E–04		3.333E–04
1/32	5.422E–05	4.00	5.674E–05	4.00	7.972E–05	4.00	8.337E–05	4.00
1/64	1.356E–05	4.00	1.419E–05	4.00	1.993E–05	4.00	2.085E–05	4.00
1/128	3.389E–06	4.00	3.547E–06	4.00	4.984E–06	4.00	5.212E–06	4.00

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