> I don't believe I've ever come across mutually tail recursive functions, or the need for them Well, had you read the link I posted in my reply to your questi

> I don't believe I've ever come across mutually tail recursive functions, or the need for them Well, had you read the link I posted in my reply to your question, you would have ;) Anyway, there are a some useful things that are much harder to do pleasantly and efficiently without it.