Richard Steffens writes:
> At least, that's what my rusty math tells me. Am I on the right track, > or do I need some mental WD-40? This vaguely reminds me of factorials > for some reason. 4! is 4 * 3 * 2 * 1 = 24.
I believe your numbers are correct. Stated another way, there are 4 ways to choose the first wire, 3 ways to choose the second, 2 ways to choose the 3rd, and one way to choose the last. I think this is just called the permutations (combinations? I can never keep them straight) of 4 things.. eg. NpR, with N=R=4. Most calculators have a button that does this, iirc. 24 sounds right though.
Thanks. That's what I think, too.
-- Regards,
Dick Steffens http://home.comcast.net/~rsteff/
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