(HP-67/97) a little fun with the fifteen puzzle
12-06-2016, 03:46 AM
Post: #6
 Don Shepherd Senior Member Posts: 745 Joined: Dec 2013
RE: (HP-67/97) a little fun with the fifteen puzzle
(12-06-2016 01:43 AM)SlideRule Wrote:  Maybe post the 17b solver equation if anyone shows an interest? {hint}

SlideRule

Sure, SlideRule, here it is:

Code:
 FIFTEEN:SIGMA(I:1:16:1:IF(ITEM(C:I)=0:IDIV(I+3:4):0))+SIGMA(I:1:15:1:SIGMA(J:I+1​:16:1:IF(ITEM(C:J)<>0 AND ITEM(C:J)<ITEM(C:I):1:0)))-INV solve for INV, sum list C contains the 16 values, 0=empty cell
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 Messages In This Thread (HP-67/97) a little fun with the fifteen puzzle - Don Shepherd - 12-03-2016, 09:26 PM RE: (HP-67/97) a little fun with the fifteen puzzle - Dieter - 12-05-2016, 09:51 PM RE: (HP-67/97) a little fun with the fifteen puzzle - Gene - 12-05-2016, 10:07 PM RE: (HP-67/97) a little fun with the fifteen puzzle - Dieter - 12-06-2016, 07:06 AM RE: (HP-67/97) a little fun with the fifteen puzzle - PedroLeiva - 04-26-2017, 10:59 PM RE: (HP-67/97) a little fun with the fifteen puzzle - Don Shepherd - 12-06-2016, 12:24 AM RE: (HP-67/97) a little fun with the fifteen puzzle - SlideRule - 12-06-2016, 01:43 AM RE: (HP-67/97) a little fun with the fifteen puzzle - Don Shepherd - 12-06-2016 03:46 AM RE: (HP-67/97) a little fun with the fifteen puzzle - SlideRule - 12-06-2016, 12:52 PM RE: (HP-67/97) a little fun with the fifteen puzzle - Don Shepherd - 12-06-2016, 05:14 AM it turns out there is a solution for the HP-65 after all - Don Shepherd - 04-26-2017, 08:37 PM RE: (HP-67/97) a little fun with the fifteen puzzle - Gene - 04-27-2017, 02:01 AM RE: (HP-67/97) a little fun with the fifteen puzzle - PedroLeiva - 04-27-2017, 12:04 PM RE: (HP-67/97) a little fun with the fifteen puzzle - Dave Britten - 05-02-2017, 03:03 PM RE: (HP-67/97) a little fun with the fifteen puzzle - Don Shepherd - 05-03-2017, 12:03 AM

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