Beware not to buy HP Prime, if you are engineer!

[dmmaster]

(05-12-2018 02:36 AM)Joe Horn Wrote:  

(05-11-2018 08:37 PM)rprosperi Wrote:  It's actually somewhere in-between.

It has an 'unlimited' stack, so a bit like RPL...

Almost. Prime's RPN stack is limited to 128 levels (just like Prime's two other history stacks). When the RPN stack is full and something new is pushed onto the stack, the top level is lost, just like traditional RPN. But like RPL, when anything is dropped, the size of the stack shrinks instead of replicating the top level.

(05-11-2018 08:37 PM)rprosperi Wrote:  ... but doesn't support lists and other non-numeric values, so more like RPN.

Similar to RPL, Prime's RPN does support lists and other non-numeric values:

{ 1 2 3 } Enter 2 * --> { 2 4 6 }
"ha" Enter Enter + --> "haha"
(Like RPL, the first Enter terminates the command line, and the second Enter performs a DUP)

The polish notation way of the very old HP calcs was cool.
Until HP50g that was cool.
Maybe the RPN is going to disappear?
(talking about reverse polish type until the retired HP50g)

Casio and TI have now a CAS, and HP slows down...