Suppose the solution E Rn, of Ab with A E Rnn upper triangular, is known. Find and present mathematically, an algorithm for the computa- tion of y in Ay b, where b e Rn differs from bE Rn only in its ith element. Implement your algorithm in a MATLAB function and run it on a random example. An n -5 example should suffice. Much attention should be paid on the efficiency of your algorithm and its implementation Suppose the solution E Rn, of Ab with A E Rnn upper triangular, is known. Find and present mathematically, an algorithm for the computa- tion of y in Ay b, where b e Rn differs from bE Rn only in its ith element. Implement your algorithm in a MATLAB function and run it on a random example. An n -5 example should suffice. Much attention should be paid on the efficiency of your algorithm and its implementation