This is the code i got for part 1:

% t1=T(x1) => 25+20+Tx3+Tx2 4t2=25+10+t1+t4 4t3=20+15+t1+t4 4t4=15+10+t2+t3

% r1=4t1-t2-t3+0=45;

% r2=-t1+4t2+0-t4=35;

% r3=-t1+0+4t3-t4=35;

% r4=0-t2-t3+4t4=25;

A=[4,-1,-1,0,45;-1,4,0,-1,35;-1,0,4,-1,35;0,-1,-1,4,25];

B=[4,-1,-1,0;-1,4,0,-1;-1,0,4,-1;0,-1,-1,4];

B1=rref(B);

hold on

imagesc(B)

colorbar

title('Heat Map')

for part 2 i am stuck and need help on it please.

Discretized Mean Value Property boundary of the plate, then the temperature at is approzimately the average of the temperatures of the four closest grid points to. To evaluate the distribution of heat on our plate, we first need to break our plate into a grid. We will start by exploring a simple grid of four interior points 25 sia 20 10 15 Find the system of equations for the distribution of heat for the plate at thermal equilibrium on the simple grid. HINT: First find the equations for each of the interior points 11-14. Solve this system of equations. Create a matrix which represents the temperature of each point on the grid distribution of heat. Do not forget to add a title! Use the built-in MATLAB function n imageac to create a visual representation of the Discretized Mean Value Property boundary of the plate, then the temperature at is approzimately the average of the temperatures of the four closest grid points to. To evaluate the distribution of heat on our plate, we first need to break our plate into a grid. We will start by exploring a simple grid of four interior points 25 sia 20 10 15 Find the system of equations for the distribution of heat for the plate at thermal equilibrium on the simple grid. HINT: First find the equations for each of the interior points 11-14. Solve this system of equations. Create a matrix which represents the temperature of each point on the grid distribution of heat. Do not forget to add a title! Use the built-in MATLAB function n imageac to create a visual representation of the