On Sun, 10 Aug 2014, Peter Percival wrote: > William Elliot wrote: > > > For added confusion, look up the Gamma function G, that's defined > > for all real numbers except negative integers. For nonnegative integers n, > > since G(n) = n!, > > Gamma(n) = (n - 1)!.
> > the gamma function is consider a generalization of > > factorial. In particual, G(-1) = oo and G(1/2) = (1/2)! = sqr pi.
G(0) = +-oo = G(-n), n in N.
> [Dancing is] a perpendicular expression of a horizontal desire.