A Finite Point Method for Solving the Time Fractional Richards’ Equation

Table 4

ε1 errors and convergence order of numerical solution, when α = 0.8 and the number of nodes is 11.

Time step	ε1	Convergence rate
1/20	3.3612e − 03
1/40	1.5831e − 03	1.0862
1/80	7.4187e − 04	1.0935
1/160	3.4394e − 04	1.1090
1/320	1.5711e − 04	1.1304
1/640	7.0722e − 05	1.1515