This blog post has moved to https://matthewvaneerde.wordpress.com/2008/02/28/how-it-works-xkcd-sucks-at-math/

You must be logged in to post a comment.

This site uses cookies for analytics, personalized content and ads. By continuing to browse this site, you agree to this use. Learn more

This blog post has moved to https://matthewvaneerde.wordpress.com/2008/02/28/how-it-works-xkcd-sucks-at-math/

You must be logged in to post a comment.

Wow, IE sucks at math! ;-)

How much better it would be to have MathML formulas instead of PNG images!

Actually I wrote this using a 64-bit version of Firefox:

Mozilla/5.0 (Windows; U; Windows NT 6.0 x64; en-US; rv:1.9a8pre) Gecko/2007090213 Minefield/3.0a8pre

http://www.mozilla-x86-64.com/

This doesn’t seem to be MathML-enabled.

Agreed, MathML will be really cool when browsers start to support it.

It has been a while since my last calculus homework, but this all came rushing back. Thanks, I guess! A little mental workout is always a good thing.

a=0 is the only solution for the last equation.

Of course, the whole point of the original comment about pi plus C (which ignores all the other errors) was to bring in irony that even the commenter "sucks at math".

First off the integral of x^2 is not even close to pi, hence why the person writing on the blackboard sucks at math. It is really http://www.wolframalpha.com/input/?i=integral+of+x^2 . Where as the + C is there to add insult to injury. Besides that, you cant add limits of integration to an indefinite integral for fun.