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NewRPL: RPN with brackets (A * B) + (C / D) => (A B *) (C D /)
04-26-2018, 03:32 PM (This post was last modified: 04-26-2018 04:09 PM by Vtile.)
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RE: NewRPL: RPN with brackets (A * B) + (C / D) => (A B *) (C D /)
I solely use expressions like 'A+B*(X-y)' when that sort of thing is needed (even then these days I prefer to compose the algebraic expression in RPL stack) and in program code I do use:

A B C + - <CR>
TemperaryVAR SWAP DUP * / <CR>

The only problem above is that the basic interpreter in the stock 50g will mix it up when you push it to the stack.

I think We should remember that in RPL opposite to RPN we do deal with OBJECTS which can be anything, but the objects are interacted with reverse polish logic.

2(=1 object) A(=1 object) STO (=command)
3(=1 object) B(=1 object) STO (=command)
'A+B' (=1 object, composed from 3 (sub)objects or from 4 (sub)objects if you count the out most container as an object, which I think would be the most correct way)

"..." "STRING" + (object1 + object2)

<<'A' 'B' 'C' {} + + +>> (1 object composed from 7 (sub)objects (+1 obj.))
{'A' 'B' 'C'} (1 object)
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RE: NewRPL: RPN with brackets (A * B) + (C / D) => (A B *) (C D /) - Vtile - 04-26-2018 03:32 PM

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