Comment by FabHK
And this works for any positive n (need not be an integer, and I think the author has an example with 1.5). Normally the letter p is used instead.
And this works for any positive n (need not be an integer, and I think the author has an example with 1.5). Normally the letter p is used instead.
I don’t think it’s a metric for 0 < p < 1 though.