Write a Matlab function that given, Gu, Gd, S_0, r, E, Tcomputes the value of a call with parameters E and T written on the underlying stock, S. The function should explicitly compute the hedging portfolio at every node in the tree, Binomial tree. (how much of the underlying and how much to save in the bank you need for replication). Be sure to find a way to visualise the hedging portfolio. Gu= 0.8, G_d=0.5, S_0= 80 r=10%, E=105 and T = 7