Geometric Mesh Three-Point Discretization for Fourth-Order Nonlinear Singular Differential Equations in Polar System

Table 4

The maximum absolute errors for Example 3.

𝑛	𝜆=1		𝜆=2
	𝜎
	1	1.11	1	0.994
8	0.338𝑒−03	0.189𝑒−03	0.322𝑒−06	0.268𝑒−06
16	0.102𝑒−03	0.292𝑒−04	0.261𝑒−07	0.183𝑒−07
32	0.337𝑒−04	0.481𝑒−05	0.186𝑒−08	0.847𝑒−09
64	0.111𝑒−04	0.662𝑒−06	0.125𝑒−09	0.126𝑒−10