Question

b) (2.5 marks) Write a Matlab user defined function that takes the letter grades (i.e. AABBC) as input and returns if the student entitled to the honor list or not. The student is considered in the honor s f he or she satisfies the following three conditions: a. An average GPA of 3.5 and above and b. At least two classes with A mark and e. no class with a mark less than C (i.e. no D or F) The function returns either 1 or 0. A returned value of one means the student is in the honor list and a value of zero means the student is not in the honor list. You function name should be IsHonor. Write a simple script that test your function

Answer 1

Answer:)

We assume the following values for the letter grades, and the corresponding formula for the GPA:

• A = 5, B = 4, C = 3 (D and F do not matter, since if we encounter them, the function should immediately return 0)
• GPA = (sum of all letter grade scores)/(number of classes) = (sum of all letter grade scores)/(number of letter grades)

Then, we get the following code which implements the above:

CODE:

function ret = isHonor(letter_grades)
average_gpa = 0.0;
count_A = 0;
for i = 1:length(letter_grades)
temp = letter_grades(i);
if(temp == 'D' || temp == 'F')
ret = 0;
break;
else
if(temp == 'A')
count_A = count_A + 1;
average_gpa = average_gpa + 5.0;
elseif(temp == 'B')
average_gpa = average_gpa + 4.0;
else
average_gpa = average_gpa + 3.0;
end
end
end
average_gpa = average_gpa/length(letter_grades);
if(average_gpa >= 3.5 && count_A >= 2)
ret = 1;
end
end

For the purposes of checking, we can simply enter isHonor("AABBC"), and we should get the return value as 1 (since average GPA is (5 + 5 + 4 + 4 + 3)/5 = 21/5 = 4.2, there are no Ds or Fs and at least two As).

CODE:

>>>isHonor("AABBC")

ans = 1