Minimal Key Calculator

[Gerald H]

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.