Can we have RPN back?

[Matt Agajanian]

Hi all.

It just came to me. If I were to have 4-level RPN back, the ideal structure of it would come straight from the HP-42S.

All data types automatically handeled, no 'Complex Mode' setting, etc. necessary.

All data types occupy a stack register. No need for a parallel stack for complex numbers (HP-15C).

At least, for me, that's an excellent start.

**In addition, as another member mentioned (perhaps from either an earlier post or different thread), as eight levels of stack entries is somewhat daunting to keep track of, perhaps a user-definable stack depth (with proper T-level pop operation for top of stack register) would be a better compromise.