[agumonkey]

with arrow syntax even

   << a -> << a a * >> >> 'SQUARE' STO

I still can't believe how advance RPL calculators were

[thsksbd]

The HP engineers were good.

First HP engineers made RPL, then they attended Sussman and Abelson's intro to CS class. I think Sussman once said that, if RPL had anonymous functions it'd be a perfect lisp.

They were real good.

https://ocw.mit.edu/courses/6-001-structure-and-interpretati...