Solving equations of two dimensional heat conduction and Laplace equation with no internal heat generation on square plate using Matlab/Octave

Objective: Objective Simulating two dimensional Fourier biot equation with no internal heat generation on a square plate with the temperature of 400,800,900,600 degrees Celcius on left, right, bottom, top respectively. To solve this differential equation finite difference method is being used, and to solve linear equations…