I need the Matlab codes please for this prroblem. NOT BY HAND. THE CODES. Thanks you

Problem 3- Lennard-Jones potential is a simple model for particle interaction given by the following: (a) Plot the function in y (V/e) vs. xr/a)coordinates for (r/a)-0.9-2 range and confirm that there is a minimum. (b) Using calculus method, determine the value of (r/a) that minimizes the function. (c) Using fminbnd or golden, find the minimum and confirm that the result is same as that from (b). Problem 3- Lennard-Jones potential is a simple model for particle interaction given by the following: (a) Plot the function in y (V/e) vs. xr/a)coordinates for (r/a)-0.9-2 range and confirm that there is a minimum. (b) Using calculus method, determine the value of (r/a) that minimizes the function. (c) Using fminbnd or golden, find the minimum and confirm that the result is same as that from (b)