I agree with Naakamura and Jeremy.
Anyways, I took 1M03,
but I'm not great at math by ANY means so I failed. O_O
I don't want to scare you or discourage you at all, lol,
I just didn't really do the work, therefore didn't really understand the material,
missed one of the online assignments, etc.
But the prof's are great, and if you do the weekly homework & online assignments,
you'll do fine.
I heard that 1LS3 was harder, but that's just what I've heard. =/