Stick Number
Let the stick number 
of a Knot 
be the least number of straight sticks needed to make a Knot . The smallest stick number of any Knot is 
, where 
is the Trefoil Knot. If 
and areKnots, then
For a nontrivial Knot
, let 
be the Crossing Number (i.e., the leastnumber of crossings in any projection of ). Then
The following table gives the stick number for some common knots.
| Trefoil Knot | 6 |
| Whitehead Link | 8 |
References
Adams, C. C. The Knot Book: An Elementary Introduction to the Mathematical Theory of Knots. New York: W. H. Freeman, pp. 27-30, 1994.
- Rhombicosidodecahedron
- Rhombic Polyhedron
- Rhombic Triacontahedron
- Rhombicuboctahedron
- Rhombidodecadodecahedron
- Rhombihexacron
- Rhombihexahedron
- Rhombitruncated Cuboctahedron
- Rhombitruncated Icosidodecahedron
- Rhombohedron
- Rhomboid
- Rhomboidal Dodecahedron
- Rhombus
- Rhumb Line
- Ribbon Knot
- Ribet's Theorem
- Riccati-Bessel Functions
- Riccati Differential Equation
- Ricci Curvature
- Ricci Tensor
- Rice Distribution
- Richardson Extrapolation
- Richardson's Theorem
- Richard's Paradox
- Ridders' Method