The Spectral Method for the Cahn-Hilliard Equation with Concentration-Dependent Mobility

Table 3

The error and the convergence order.

ℎ𝑘	err1(0.1,ℎ𝑘)	Order1	err2(0.1,ℎ𝑘)	Order2
0.1×10^−2	0.1150×10^−5	—	0.5224×10^−5	—
0.5×10^−3	0.2872×10^−6	2.0013	0.1304×10^−5	2.0019
0.25×10^−3	0.7158×10^−7	2.0043	0.3250×10^−6	2.0044
0.125×10^−3	0.1769×10^−7	2.0170	0.8031×10^−7	2.0171
0.625×10^−4	0.4211×10^−8	2.0704	0.1912×10^−7	2.0704