The real numbers are the dependable breadwinner of the family, the complete ordered field we all rely on. The complex numbers are a slightly flashier but still respectable younger brother: not ordered, but algebraically complete. The quaternions, being noncommutative, are the eccentric cousin who is shunned at important family gatherings. But the octonions are the crazy old uncle nobody lets out of the attic: they are nonassociative. — John Baez(from wikipedia article on Octonions)
Something that's bugged me for a long time is this: How many paths, starting at the origin, taking N steps either up, down, left or right, end up at…
Didn't sleep well. Long day of work. Dinner with akiva at hanamichi.
K was going to do a thing for her dad's birthday, but scheduling kept slipping and slipping so I guess we're going to try doing it tomorrow instead.