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Minimal Key Calculator
03-13-2015, 08:32 AM (This post was last modified: 03-13-2015 08:35 AM by Didier Lachieze.)
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Didier Lachieze Offline
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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:

http://www.hpmuseum.org/forum/thread-3345.html

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:

[Image: LaitramXQ2_s.jpg?psid=1]
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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 - rprosperi - 03-13-2015, 09:14 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 - 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 - TASP - 03-13-2015, 10:09 PM
RE: Minimal Key Calculator - Garth Wilson - 03-13-2015, 10:58 PM



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