Minimal Key Calculator
03-13-2015, 08:32 AM (This post was last modified: 03-13-2015 08:35 AM by Didier Lachieze.)
Post: #2
 Didier Lachieze Senior Member Posts: 1,286 Joined: Dec 2013
RE: Minimal Key Calculator
(03-13-2015 08:17 AM)Gerald H Wrote:  In another thread the question of unnecessary functions & redundant keys is raised:

What could be the least number of keys needed to reproduce all the functions of, say, the HP 35S keyboard?

If you were happy with a purely binary calculator, only two number keys would be required - but probably you would want to keep decimal input, so let's say you stay decimal.

With 16 keys you can have the complete HP 41CX function set:

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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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