[math-fun] oops, that's Plot[BesselJ[0, x], {x, -20, 20}]
2 Aug
2013
2 Aug
'13
12:55 a.m.
Demonstrating that odd/odd = even, I showed a kid sin(x)/x, then Googled up http://en.wikipedia.org/wiki/File:Sunnyvale_Frys_Electronics.jpg . --rwg
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Bill Gosper