two updates in two days, you are on a roll!
You have a new banner! I love the "updated e>0 times per month" :)
But isn't π half the constant that τ is?
No. τ is just π without a leg to stand on (ok, without two legs to stand on).
you have updated at least three times!! im proud of you! thanks
This mathbook is more awesome than Facebook.
...though it should be called "mathsbook" if they're going to spell it "neighbourhood"...
@bmonk: you mean π is τ's better half.
you know, you could just click reply on his comment...
also, I like your version better