Circulant Matrix
An 
Matrix 
defined as follows,
 |  |  | |
 | |  |
where
, 
, ..., 
are the 
th Roots of Unity. Circulant matrices are examples of Latin Squares.See also Circulant Determinant
References
Davis, P. J. Circulant Matrices, 2nd ed. New York: Chelsea, 1994. Stroeker, R. J. ``Brocard Points, Circulant Matrices, and Descartes' Folium.'' Math. Mag. 61, 172-187, 1988. Vardi, I. Computational Recreations in Mathematica. Reading, MA: Addison-Wesley, p. 114, 1991.
- Smith's Markov Process Theorem
- Smith's Network Theorem
- Smooth Manifold
- Smooth Number
- Smooth Surface
- Snake
- Snake Eyes
- Snake Oil Method
- Snake Polyiamond
- Snedecor's F-Distribution
- Snellius-Pothenot Problem
- Snowflake
- Snub Cube
- Snub Cuboctahedron
- Snub Disphenoid
- Snub Dodecadodecahedron
- Snub Dodecahedron
- Snub Icosidodecadodecahedron
- Snub Icosidodecahedron
- Snub Polyhedron
- Snub Square Antiprism
- Soap Bubble
- Soccer Ball
- Sociable Numbers
- Social Choice Theory