Plasmon comments on Take heed, for it is a trap - Less Wrong

47 Post author: Zed 14 August 2011 10:23AM

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Comment author: Plasmon 17 August 2011 05:29:27AM 2 points [-]

I feel compelled to point out that 0^0 is undefined, since the limit of x^0 at x=0 is 1 but the limit of 0^x at x=0 is 0.

Yes, in combinatorics assuming 0^0=1 is sensible since it simplifies a lot of formulas which would otherwise have to include special cases at 0.