2. Write a function with header [M] = myMax(A) where M is the maximum (largest) value in
A. Do not use the built-in MATLAB function max.
3. Write a function with header [M] = myNMax(A,N) where M is an array consisting of the N
largest elements of A. You may use MATLAB’s max function. You may also assume that N is
less than the length of M, that A is a one-dimensional array with no duplicate entries, and that N
is a strictly positive integer smaller than the length of A.
4. Let M be a matrix of positive integers. Write a function with header [Q] =
myTrigOddEven(M) , where Q(i, j) = sin (M(i, j)) if M(i, j) is even, and Q(i, j) =
cos (M(i, j)) if M(i, j) is odd.
5. Let P be an m × p matrix and Q be a p × n matrix. As you will find later in this book,
M = P × Q is defined as M(i, j) = kp=1 P(i, k) · Q(k, j). Write a function with header
[M] = myMatMult(P,Q) that uses for-loops to compute M, the matrix product of P and Q.
Hint: You may need up to three nested for-loops.
6. The interest, i, on a principle, P0, is a payment for allowing the bank to use your money.
Compound interest is accumulated according to the formula Pn = (1 + i) Pn−1 , where n is the
compounding period, usually in months or years. Write a function with header [years] =
mySavingPlan(P0, i, goal) where years is the number of years it will take P0 to
become goal at i% interest compounded annually.