HP 50g: Neighbour Function (Dedekind Cut) Programme Challenge

[Gerald H]

(09-27-2017 07:39 AM)Joe Horn Wrote:  I'd LOVE to see your program. For years I've been living with this atrocity called NABR. It adds X ULPS onto Y. Example: 5 ENTER 2 NABR --> 5.00000000002

<< SWAP DUP XPON SWAP MANT .00000000001 4. ROLL * + SWAP ALOG * >>

Fails when Y=0, and gets the wrong answer for 1 ENTER -1 NABR.

Very nice, could be the basis of an answer to my post.