(a) What is the difference between pseudo-code and an actual program? In the following example, first write pseudo-code, flow-chart, as well as an actual MATLAB program using a for loop and conditional statements (if and elseif) to evaluate and output the following function for -5 < x < 10, assuming that the scalar x has a value of 15:
20 * 7 + 6 for x <= -1;
sqrt(x) * sin(2 * x) for -1 < x < 5;
y = 15 * (-1) + sqrt(x) for x >= 5.