The Numerical Solution of Singularly Perturbed Nonlinear Partial Differential Equations in Three Space Variables: The Adaptive Explicit Inverse Preconditioning Approach

Table 3

The convergence behavior of Newton−mEPCG method for solving the given nonlinear problem (time step Δt = 0.005).

	Inner iterations (method mEPCG)			Δt	Outer iterations (method Newton)
εS	1	m
1.00	57	50	42	0.005	7
0.10	129	131	114		25
0.01	527	594	557		165