Jump to content

Set, the card game: Difference between revisions

m
Line 404:
Why does <code>isset</code>, the word that tests if three cards constitute a set, use <code>+</code> and <code>mod</code>?
 
If we map any of the properties, say colour, onto the numbers 0, 1 and 2, then the sum of three colours mod 3 is 0 if and only iffif all the colours are different or all the colours are the same. This can be confirmed exhaustively, or for the underlying mathematics see the first two paragraphs of the section "A Mathematical Perspective" (pages 7 and 8) in this paper:
 
::[https://web.math.princeton.edu/~charchan/SET.pdf SETs and Anti-SETs: The Math Behind the Game of SET, by Charlotte Chan]
1,493

edits

Cookies help us deliver our services. By using our services, you agree to our use of cookies.