RPL second impressions (HP 28)

[Thomas Okken]

(06-29-2018 01:08 PM)Gerson W. Barbosa Wrote:  « DUP 2 / FP
  IF NOT NOT
  THEN DUP √ 1
    DO 2 + 3 DUPN
SWAP OVER
    UNTIL < ROT ROT
MOD NOT OR
    END SWAP DROP
MOD NOT
  END NOT
»

This is a perfect example of what some people dislike about RPL: in order to write efficient programs, you have to avoid expressions and use stack manipulation instead. The resulting programs are hard to write and even harder to read.

Can be great fun for programming challenges, though.