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About superprismatic

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    Not just Prismatic

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  1. reversed coefficients

    One possibility you hadn't addressed: What about roots which are 0, and possibly with multiplicity?
  2. Dueling cards

  3. How big was the dinner table?

    I have one question which could make a big difference. It's a bit indelicate, so I'll put it in a spoiler.
  4. Dueling cards

  5. The kindest (shortest) cut of all

    @Bonanova or anyone else who may have an interest in this: Do you have a proof that that circular arc is the shortest? Conceivably, a piece of a trigonometric curve, or exponential curve, or another conic section may be shorter. The possibilities are endless.
  6. Making 271

    I'll bet that the answer is divisible by 7.
  7. Birthday Probability

    Nice analysis! I wish I had thought of that.
  8. Factor this

  9. Magic octagon

  10. Magic octagon

  11. Unlocking doors