Portal:Mathematics/Featured picture/2010 10

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Picture of the month


Credit: Jim.belk

The trefoil knot is the simplest non-trivial knot, that is the simplest knot not equal to the unknot, and is the only knot with three crossings. It is also the simplest tricolorable knot, as illustrated in the above diagram: all three colours are used at each of the three crossings.

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