:Category tags, got it. --[[User:Ed Poor|Ed Poor]] <sup>[[User talk:Ed Poor|Talk]]</sup> 11:55, 18 February 2016 (EST)
:Category tags, got it. --[[User:Ed Poor|Ed Poor]] <sup>[[User talk:Ed Poor|Talk]]</sup> 11:55, 18 February 2016 (EST)
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== The recursion joke ==
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It was used in Donald Knuth's ''The Art of Computer Programming'' in 1968.
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And hello again!
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I've been trying to keep the math and science stuff from going off the deep end over the last couple of years. Not really hard; you and I seem to have scared off the flamers pretty well. But something came up very recently, that you might want to look at. See the quadrupole stuff in [[Gravitational waves]]. It's beyond me, and I'm way too busy fighting lower-level battles at present.
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Good to see you back. [[User:SamHB|SamHB]] ([[User talk:SamHB|talk]]) 12:24, 18 February 2016 (EST)