Actually, I believe the hardware and machine code use RPN natively, and
the translation to infix is in software.

> Although I don't know it, I bet the algorithm used to convert any
> mathematical formula to an RPN algorithm is the same in all compilers of
> all languages implementing formulas, and I doubt it is covered by
> copyright. I don't claim, though, that RPN calculation in general, and
> FORTH in particular aren't an interesting exercise.

> --     Didier

Forth is AMAZING if you are doing embedded work on limited hardware. About
2K core and everything else is written in FORTH. itself. AMAZINGLY fast!
Like assembler, but portable.
Of course, if you work only at HIGHER levels that may not be interesting.
--
William B. Peckham
Senior Network/Systems Administrator