Approximate Solutions of Fisher's Type Equations with Variable Coefficients

Figure 4

The curves of approximate solutions and the exact solutions of problem (35) at 𝑡=0.0, 𝑡=0.5, and 𝑡=0.9 with 𝜈=𝛾=10⁻², 𝛿=1, and 𝑁=20.