MECHANICAL ENGINEERING, HEAT CONDUCTION PROJECT

I need help with my project in the class "Heat Transfer", the project is about "Heat Conduction". 

You are expected to solve problem 4.4 (attached) using MATLAB. Put the results in a TABLE, and don't forget to obtain a PLOT for your results.

The second part of the project, you are asked to create and solve a similar problem (geometry and boundary conditions are up to YOU), follow the same instructions attached. 

See attached instructions for more clarity,