I liked this simple calculus exercise(blog.plover.com)
420 points by kamaraju | 134 comments
Mark Dominus blog post discussing a Math StackExchange calculus exercise integrating e^(x/2 - floor(x/2)) from 0 to 2000 and why it is a good problem.
#floor-function on Hacker News
1 story tagged floor-function, newest first.