<p>most science kids take 140 and 141 from what I’ve heard. 141 isn’t that hard and it won’t close off any doors to you, as far as I’m aware. It’s challenging and the class average fall 2005 was like 60 something, but I got an A in it and I’m not particularly gifted in math. You have to work hard though and be diligent even if you feel like you’ve seen the material already. and go to tutorial!! they’ll help you do your problem sets and teach you a lot that the prof might not just because he has to cover a lot of theory in class.</p>