KNOT THEORY

Knot
Tube
Speed
Trefoil Knot — 3₁
Crossing number: 3
Writhe: +3 (or −3 mirror)
Unknotting number: 1
Jones polynomial: −t⁻⁴ + t⁻³ + t⁻¹
Alexander poly: −t + 1 − t⁻¹
Is amphichiral: No (chiral — distinct from mirror)
π₁ complement: <a,b | a²=b³>