have to implement 1-D heat equation using FTCS my code isnt getting the figure i need ?

Clc;close all
%Initialiazing the Heat Equation
%Defining the constants and initial conditions
X0 = 0; X = 2; %maximum length in X direction
T0 = 0; T = 2; %final Time
m = 20; %number of cells
 
Alpha = 0.25; %Given Thermal Diffusivity Constant
 
dx = 0.1; %dx=h , using given value of h
dt = 0.01; %dt=k , using given value of k 
 
%Calculating the grid size 
mx = (X-X0)/dx+1; %number of nodes in x direction
nt = ceil((T-T0)/dt+1); %number of time steps or nodes in y direction
 
V = alpha*k/(h*h); %Constant used in calculating next point
 
%implementing the Output Matrix
W1 = sparse(mx,nt); % W(X,T) Numerical Solution
 
%executing the Initial Condition and Boundary Conditions
f = @(x) 100;
x = X0:dx:X; %value of steps in x direction
t = T0:dt:2; %value of time steps in y direction
W1(:,1) = f(x); %setting the initial condition at x=0
W1(1,:) = 0; W1(mx,:) = 0; %setting the boundary condition at x=L
A = sparse((V*eye(mx-2)zeroes(mx-2,2))+(zeros(mx-2,1)*(1-2*V)*eye(mx-2)zeros(mx-2,1))+(zeros(mx-2,2)
    V*eye(mx-2)));
for ii=2:nt
    W1(2:mx-1,ii) = A*W1(:,ii-1);
end
%Plotting the solution
figure(1)
imagesc(x,t,W1);
colorbar;
title("1D HEAT EQUATION SOLUTION USING FTCS METHOD");
xlabel('Time(T)');
ylabel('Space(X)');

[Ravi Narasimhan]

I tried your code and got a bunch of errors.

Clc should be clc.

There are a lot of missing multiplication operators (I think) in the sparse command. Depending on what you're multiplying (arrays or scalars) you will have to look into the .* and * operators. If you're multiplying arrays, the array sizes need to be compatible with matrix multiplication.

k and h are not defined so

V = Alpha*k/(h*h)

doesn't work, etc.