• Onno (VK6FLAB)
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    1 day ago

    Zero

    It’s the absence of a number and has all manner of interesting edge cases associated with it.

    • november@lemmy.vg
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      15 hours ago

      Zero is a real number, but interestingly, it’s also a pure imaginary number. It’s the only number that’s both things at once.

      • Ad4mWayn3@sh.itjust.worksOP
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        15 hours ago

        It gets deeper. It’s also the same as the 0-k-vector, the 0-k-blade, the 0-multivector, the only number that is its own square besides 1, etc…

        • november@lemmy.vg
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          12 hours ago

          There are other idempotent numbers in the split-complex and q-adic (for non-prime q) numbers.