If I am the lecturer, this is what I will ask you during mid term test:

1a) I give you this MATLAB code, tell me what is the problem that I am solving :)

haha = 0; mystery = 0; hihi = 10;
while haha < 7
  haha = 7;
end
hihi

1b) Simply rewrite the code in 1a in a 'better way':

[write it here]

2. A = [3 4 -12 -3 5 8 9 10];
Write ONE LINE MATLAB code to create a new array B that:

a). is a reverse of array A.
b). is array A too, but with all negative numbers filtered out.
c). contains the indices of every element in A that is greater than 3 and less than 9
d). etc

3. I give you these arrays:

A = [1 2 3 4];
B = [1;2];

Do something with at least one or both arrays to produce these:

a). C = [1 1 2 2 3 4];
b). D = [3 3 3 4];
c). etc

4. Supply a SINGLE arithmetic, relational, or logical operator on the elipsis (...)
   to make MATLAB returns:
      ans = 1
   (which is true)

a). [1 2 3 4] * 5 ... [1 1 1 1]
b). ... 5 > 2 + 3 ... ... 1
c). etc