Figure 9From: Fourth-order compact finite difference method for solving two-dimensional convection–diffusion equationThe effect of numerical solution and exact solution at fixed \(T = 1, h = \frac{1}{4}\) and \(\tau= \frac{1}{16}\) in Example 3. (a) \(N=2^{2}\). (b) \(N=2^{2}\)Back to article page