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> Ideed there is no RPN on the 39GII.
>
> >
> However, the Prime will have RPN entry mode, but not for programming (no RPL or SysRPL). Programming will apparently be similar to the 39GII, a bit Pascal-like. See posts by TW in this thread:
>
That's sounds good. Programming in other languages ist no problem. If the new Prime works as a good RPN calculator and RPN isn't only another app I'll give it a try. ;-)
But the practicability of RPN in the 48SX was significant higher through RPL. All the object handling was on one level. Complex numbers, equations, units, matrix, etc. all of them come together on one working environment. That was the biggest advance for me against all other handhelds where you have to open an app for each problem domain.
For larger problems/programs RPL was not so ideal. But then I switch to my Mac, Python, Xcode, Maple... and sometimes to my iPad. But I still need real keys for quick and secure calculations.