Saving expressions?

[CyberAngel]

(03-21-2020 10:47 AM)toml_12953 Wrote:  

(03-21-2020 03:30 AM)victorvbc Wrote:  The single letter uppercase variables are reserved in the calculator, that's why you can't use them as anything other than real numbers.

IMHO, that's one of the deficiencies of the Prime. I'd like complete freedom on deciding what goes under what variable name. There's no such restriction in C, Python, Pascal, BASIC, COBOL, FORTRAN, etc. FORTRAN does have a default of INTEGER for some variables but you can override it.

Pascal restricts the type forever.
There's no such restrictions on HP Prime where you can freely reassign a free variable with your choice of content at any moment.
In COBOL one can do even better and overlap variables at will. Diaster waiting if your compiler can't handle it.
Fortran is (was?) quite restricted.
I prefer SysRPL-RPL Combo as it brings together Lisp and (almost) Forth. I like when one can modify an interpreted language on the fly! (or compile)
Also, back in the stone age when there was no Harward Architecture or separation of data and code one could poke around (pun) and fix the direct machine code for a loop branch or whatever+
Anyway, I think that there's enough name space to have your own clearly named variables besides those of the System in the dear old HP Prime.
Ane the flexibility of string & list processing.
I wish I could manipulate apps=programs as easily as on the HP 50G. – Ahhh...
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