I used to be able to integrate. Now I'm terrible at it.
For added hilarity, someone at the Mathematics Colloquium that I am in today had a presentation, and one of the steps involved integration by parts. About a good third of the room started chuckling when it was brought up, and the person presenting didn't know why.
Nice. My favorite part is the alt text. I think everyone had someone who yelled at them at some point for not putting +C.
I don't bother yelling at them about it; I get to be the one that docks points off for not inserting the +C. Muhuhahaha!
Don't forget that integration by parts, and, indeed, the Fundamental Theorem of Calculus, doesn't necessarily work for continuous functions if you are dealing with functions that are not absolutely continuous. Also, the 'dv' function ought to be in L1, regardless of whether it is continuous, and the 'u' function ought to be in (at least) C1.
In PDE colloquia, it is not uncommon to see an IBP step, with the speaker spending a fair amount of time justifying that IBP is something that can be done there.
I HAVE to blow everything up! It's the only way to prove I'm not CRAZY!
so in my humble opinion, this comic completely knocked it out of the park.
It's humor based on understanding of concepts, in a way that's not just "hey look I referenced this concept, I can pop culture". It's been awhile since I appreciated an xkcd comic this much.
I'm trying to find the big number on the left, but I can't see it. I can see the pattern of numbers that form a big 2 on the right side, but I'm having throuble getting a number on the left. A 9 maybe?
EDIT: Nope, it's a 4. Someone on the xkcd forums already colour-coded it:
As a bonus, this also seems to have an OCD test: that stupid little 2 there that's not part of either number. Gggrrrrr
Last edited by unbridledExüberance; 05-18-2013 at 02:10 PM.