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

Table 5

The root mean square errors for Example 3.

𝑛	𝜆=1		𝜆=2
	𝜎
	1	1.11	1	0.994
8	0.255𝑒−03	0.140𝑒−03	0.245𝑒−06	0.202𝑒−06
16	0.742𝑒−04	0.197𝑒−04	0.193𝑒−07	0.134𝑒−07
32	0.240𝑒−04	0.270𝑒−05	0.136𝑒−08	0.589𝑒−09
64	0.782𝑒−05	0.243𝑒−06	0.900𝑒−10	0.834𝑒−11