(09/14/2009, 09:43 PM)mike3 Wrote: Is there any way in which this could be done with something other than the matrix operator? For example, could a limit formula be used like that for \( b = e^{1/e} \), for this base (\( b = e^{-e} \)) even if convergence is dog slow?
Hm actually, I am not aware of such a limit formula. I only know \( |\lambda|\neq 0,1 \) and \( \lambda=1 \) but there should be also a formula somewhere for your case of \( \lambda=-1 \) (or generally for \( \lambda^m = 1 \) for some \( m \), here \( m=2 \)). If I have some time I will look through some books.
The powerseries development of the regular slog/sexp probably anyway has zero convergence radius.
