Walkthrough of an RPL program for an RPN programmer

[Thomas Klemm]

(08-19-2018 03:13 PM)Albert Chan Wrote:  How to decide where to add << ... >> ?

The guillemets « … » around the code postpone its execution.
That's similar to quote (or ') in Lisp.

We have to that or then the CROSS command would be executed immediately.
But we want DOSUBS to execute it.

In Javascript parlance we pass it as a callback.
Or simply as a function.

So yes, RPL is a functional programming language.

Cheers
Thomas