• november
    link
    fedilink
    English
    arrow-up
    4
    ·
    19 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
      link
      fedilink
      arrow-up
      2
      ·
      19 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
        link
        fedilink
        English
        arrow-up
        1
        ·
        16 hours ago

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