iamcal.com

5th July, 3:31 pm

nobody@domain.com (Cal Henderson) — Fri, 5 Jul 2024 15:31:04 +0000

Scientific American did a podcast episode about Cleo, the Math StackExchange user who posted incredible answers with zero explanation and then disappeared in 2015. I would love to know who they were and why. Terence Tao confirmed that he was not Cleo. Some people thought it was Hawking, or Ramanujan reborn. Just excellent work.

10th May, 12:02 am

nobody@domain.com (Cal Henderson) — Tue, 10 May 2011 00:02:00 +0000

math for programmers makes a lot of good points. i just need a way to track my wikipedia usage and claim it as 'studying'

26th April, 5:06 pm

nobody@domain.com (Cal Henderson) — Mon, 26 Apr 2010 17:06:00 +0000

there's something special about most numbers. lots to learn

29th June, 6:48 pm

nobody@domain.com (Cal Henderson) — Fri, 29 Jun 2007 18:48:00 +0000

a wooden binary adder? too cool [via hammond]

15th January, 8:22 am

nobody@domain.com (Cal Henderson) — Mon, 15 Jan 2007 08:22:00 +0000

a interesting article on huge numbers [via xkcd]

20th November, 10:17 pm

nobody@domain.com (Cal Henderson) — Sun, 20 Nov 2005 22:17:00 +0000

pie are square? two pie are. and three pie are cube!

26th July, 9:32 pm

nobody@domain.com (Cal Henderson) — Mon, 26 Jul 2004 21:32:00 +0000

the wikipedia page on surreal numebrs makes for interesting reading.

13th July, 6:59 pm

nobody@domain.com (Cal Henderson) — Tue, 13 Jul 2004 18:59:00 +0000

this is a nice piece on highly composite numbers.