1–26 Repeat Problem 1–22 using MATLAB to perform the calculations. Create a vector for the voltage values, v =

[15 5 10 −10 20 20], and a vector for the current values, i = [−1 1 2 −1 −3 2]. Compute the corresponding vector for the power values, p, using element-by-element multiplication

(.∗) and then use the sum command to verify the power balance.