Matlab Operators

Question

I am studying for cumulative exam I have tomorrow and I got the following question wrong on a previous exam. I was hoping someone could explain this question to me? What does (~

Answer 1

The ~ means NOT. However, numeric values are all considered TRUE unless they are identically equal to 0.

So, the commands which are actually executed by this logic are:

m = m+1;  %Following if (~m)
m = m-1;  $Following else

Also, there is a nested if statement in the code. It will be easier to read if you used multiple level indentations.