Minimal Key Calculator
03-13-2015, 09:50 AM (This post was last modified: 03-13-2015 09:55 AM by Gerald H.)
Post: #5
 Gerald H Senior Member Posts: 1,452 Joined: May 2014
RE: Minimal Key Calculator
Edit: Clearly I don't have imagination enough & now rescind my decision below to one in favour of PANAMATIK with zero keys. I should have added the proviso of entry only by key.

(03-13-2015 08:51 AM)Paul Dale Wrote:  Is chording permitted? This greatly multiplies the number of keyboard positions. For a two chord keyboard with n keys, you get n+nC2 = ½(n²+n). A three chord keyboard gives n+nC2+nC3 = ⅙(n³+5n). And so forth. The effect is multiplied again if the order the chord keys is considered.

As for minimal, one key is clearly sufficient -- input using Morse code or similar.

- Pauli

OK, definitely winner of the competition.

My specifications were vague (not deliberately, as I guess most people are mind-readers & have the same background thoughts as me) & I should have added the proviso of not inducing repetitive strain injury after 60 mins usage.
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 Messages In This Thread Minimal Key Calculator - Gerald H - 03-13-2015, 08:17 AM RE: Minimal Key Calculator - Didier Lachieze - 03-13-2015, 08:32 AM RE: Minimal Key Calculator - Massimo Gnerucci - 03-13-2015, 10:32 AM RE: Minimal Key Calculator - rprosperi - 03-13-2015, 09:14 PM RE: Minimal Key Calculator - Didier Lachieze - 03-13-2015, 09:31 PM RE: Minimal Key Calculator - Massimo Gnerucci - 03-13-2015, 09:34 PM RE: Minimal Key Calculator - Massimo Gnerucci - 03-13-2015, 09:36 PM RE: Minimal Key Calculator - rprosperi - 03-14-2015, 03:03 AM RE: Minimal Key Calculator - Paul Dale - 03-13-2015, 08:51 AM RE: Minimal Key Calculator - Gerald H - 03-13-2015 09:50 AM RE: Minimal Key Calculator - PANAMATIK - 03-13-2015, 08:51 AM RE: Minimal Key Calculator - BartDB - 03-13-2015, 10:20 AM RE: Minimal Key Calculator - Eddie W. Shore - 03-17-2015, 12:55 PM RE: Minimal Key Calculator - Didier Lachieze - 03-13-2015, 10:41 AM RE: Minimal Key Calculator - Paul Dale - 03-13-2015, 11:14 AM RE: Minimal Key Calculator - PANAMATIK - 03-13-2015, 11:26 AM RE: Minimal Key Calculator - Gerald H - 03-13-2015, 11:57 AM RE: Minimal Key Calculator - Gerald H - 03-13-2015, 12:07 PM RE: Minimal Key Calculator - Gerald H - 03-13-2015, 12:13 PM RE: Minimal Key Calculator - Thomas Radtke - 03-13-2015, 05:59 PM RE: Minimal Key Calculator - Gerald H - 03-13-2015, 06:17 PM RE: Minimal Key Calculator - BruceH - 03-13-2015, 10:25 PM RE: Minimal Key Calculator - Marcus von Cube - 03-14-2015, 12:58 PM RE: Minimal Key Calculator - TASP - 03-13-2015, 10:09 PM RE: Minimal Key Calculator - Garth Wilson - 03-13-2015, 10:58 PM

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