8 posts tagged with combinatorics. (View popular tags)

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Visual Patterns. Here are the first few steps. What's the equation?

posted by Wolfdog on Feb 18, 2014 - 19 comments

posted by Wolfdog on Feb 18, 2014 - 19 comments

Every film Pixar has produced has landed in the top fifty highest-grossing animated films of all time. What's their secret? Mathematics. Oh, and 22 Rules of Storytelling. [more inside]

posted by zarq on Mar 8, 2013 - 40 comments

posted by zarq on Mar 8, 2013 - 40 comments

Morton and Vicary on the Categorified Heisenberg Algebra - "In quantum mechanics, position times momentum does not equal momentum times position! This sounds weird, but it's connected to a very simple fact. Suppose you have a box with some balls in it, and you have the magical ability to create and annihilate balls. Then there's one more way to create a ball and then annihilate one, than to annihilate one and then create one. Huh? Yes: if there are, say, 3 balls in the box to start with, there are 4 balls you can choose to annihilate after you've created one but only 3 before you create one..." [more inside]

posted by kliuless on Jul 21, 2012 - 78 comments

posted by kliuless on Jul 21, 2012 - 78 comments

1,143,839,622,748,050,000,000,000,000 Sonnet Anagrams and oodles of other oddities from Mike Keith involving constrained writing, mathematics, music, and the number π.

posted by Wolfdog on Jun 26, 2012 - 12 comments

posted by Wolfdog on Jun 26, 2012 - 12 comments

Counting is one of the first and simplest concepts most people are taught. But when you get beyond simple 123s, counting can become an advanced subject all its own. Essentially the science of counting, combinatorics is a key component of everything from abstract algebra to probability (PDF). [more inside]

posted by kmz on Sep 21, 2011 - 38 comments

posted by kmz on Sep 21, 2011 - 38 comments

A generating function is a way to keep track of a lot of related numbers all at once... The study of generating functions is an art and a science known as 'generatingfunctionology,' and its bible is free for all to download. [more inside]

posted by kaibutsu on Apr 22, 2010 - 25 comments

posted by kaibutsu on Apr 22, 2010 - 25 comments

Ever wondered what comes next, and why? The On-Line Encyclopedia of Integer Sequences has the answers. (Previously.)

posted by parudox on Mar 10, 2009 - 33 comments

posted by parudox on Mar 10, 2009 - 33 comments

If you could use a great big free handbook of discrete math and algorithms, Jörg Arndt's fxtbook wants to be your friend. Plain text table of contents to whet your appetite.

posted by Wolfdog on Mar 5, 2008 - 11 comments

posted by Wolfdog on Mar 5, 2008 - 11 comments

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