An examples of removing extraneous commands from a Maple Lab
After you've completed each (sub)section of the assignment, remove all extraneous Maple commands that you ended up not using, and all wrong stuff. But don't remove needed stuff like definitions of a function.
For example, suppose you are instructed to "Plot -2cos(x) and compute its value at Pi.", and you produce the following:
> f1:= x -> - 2 * cos(x);
- 2 cos(x)
> plot(f1);
(the output is a good plot)
> f1(pi);
- 2 cos(pi)
> f1(Pi);
2
Of the four lines of input, you should remove the third line, which didn't work. You should not remove the first line, because this is the only line that tells Maple (Maple's kernel) what "f1" means.