I don't know how (or if) functions with variable numbers of arguments are handle in RPN?

As a previous life's HP-48 owner, number of arguments is pushed onto the stack after them. Since functions know how to unstack their args, in this case this is a two steps operation

____
HTH, Dominique
My two favorites:
If the only tool you have is a hammer, you will see every problem as a nail. --Abraham Maslow
Bien faire, et le faire savoir...

In reply to Re^2: Generic RPN Translator available? by dfaure
in thread Generic RPN Translator available? by saintmike

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