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jolmg
on April 15, 2021
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Show HN: I made a 5-key keyboard
> Then we can type up to 2^5 = 33 characters
Typo. 2^5 = 32, but should probably say 2^5 - 1 = 31, since not pressing anything is a no-op.
stavros
on April 15, 2021
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Oops, I off-by-oned off-by-one, thanks.
amelius
on April 15, 2021
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Imagine the possibilities using two hands.
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Typo. 2^5 = 32, but should probably say 2^5 - 1 = 31, since not pressing anything is a no-op.