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

Table 2

The root mean square errors for Example 1.

𝑛	𝜆=1		𝜆=2
	𝜎
	1	0.9937	1	0.996759
8	0.664𝑒−04	0.590𝑒−04	0.219𝑒−05	0.205𝑒−05
16	0.166𝑒−04	0.131𝑒−04	0.139𝑒−05	0.125𝑒−05
32	0.877𝑒−05	0.517𝑒−05	0.419𝑒−08	0.239𝑒−08
64	0.417𝑒−06	0.214𝑒−08	0.214𝑒−09	0.483𝑒−10