**5. Conclusion**

The multidomain bivariate spectral collocation method has been used successfully to solve nonlinear parabolic PDEs that arise in a wide range of applications like genetics, biology, heat and mass transfer and wave processes. The approximate results confirm that the multidomain bivariate spectral collocation method is very accurate and computationally faster when it is used to solve nonlinear parabolic PDEs that are defined over large-time domains. This approach is an alternative to other numerical methods that can be used to solve nonlinear parabolic partial differential equations. The multidomain bivariate spectral collocation method being more accurate and computationally faster can therefore be adopted and extended to solve similar problems that model real-life phenomenon.
