• @[email protected]
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    3 months ago

    Introducing, the signed factorial: ¡n! = n × -(n-1) × (n-2) x -(n-3) x … x (-1)^(n-2)(2) ×(-1)^(n-1)(1)

    • @jaybone
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      113 months ago

      We did it Lemmy!

      Where’s our Nobel prize.

        • @Randelung
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          53 months ago

          I heard biology branches out.

    • @[email protected]
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      3 months ago

      I’d prefer an alternative definition that starts with the base case ¡0! = 1, and then for n > 0 we define ¡n! = n * -¡(n-1)!

      • @jaybone
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        33 months ago

        How are you going to flip the signs though?