Figure-eight Knot (mathematics)
In knot theory, a figure-eight knot (also called Listing's knot) is the unique knot with a crossing number of four. This is the smallest possible crossing number except for the unknot and trefoil knot. The figure-eight knot is a prime knot.
Read more about Figure-eight Knot (mathematics): Origin of Name, Description, Mathematical Properties, Invariants
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“Brutus. How many times shall Caesar bleed in sport,
That now on Pompey’s basis lies along,
No worthier than the dust!
Cassius. So oft as that shall be,
So often shall the knot of us be called
The men that gave their country liberty.”
—William Shakespeare (1564–1616)