Robin Becker wrote: > I believe the classic answer is Ackermann's function > > http://demonstrations.wolfram.com/RecursionInTheAckermannFunction/ > > which is said to be not "primitive recursive" ie cannot be unwound into > loops; not sure whether that implies it has to be recursively defined or > can perhaps be broken down some other way. For more eye-glazing
But am I right in thinking that TCO doesn't work for Ackermann's function, at least not as it's written down in the above page? J. -- https://mail.python.org/mailman/listinfo/python-list