little math puzzle. Map 1 0 -1 to 1 0.5 0

[Gerson W. Barbosa]

(05-21-2018 07:46 PM)Dieter Wrote:  

(05-21-2018 07:33 PM)Joe Horn Wrote:  1 – SQRT

Works on all RPN/RPL models, I think.

Hey, that's a good one!
My solution is different, but takes the same three steps.
Anyone else with three steps? Or even less?

2 / INT

HP-42S:

2 BASE/

hp 33s:

2 INT/

Gerson.