03/03/2008, 06:05 PM
bo198214 Wrote:Interestingly the derivation of a previous operation seems not to depend on an intial condition like a[N]1=a (which is not true for N=1, but for all N>1).
If you'll notice in my version of the FAQ pages 11-12, (based on this post) I use a piecewise function with initial conditions for converting hyperN => hyper(N+1) and I use a single definition for hyperN => hyper(N-1) which depends on the fact that you don't need an initial condition.
It is very interesting indeed.Andrew Robbins

