Frieze Pattern
An arrangement of numbers at the intersection of two sets of perpendicular diagonals such that
(for anadditive frieze pattern) or 
(for a multiplicative frieze pattern) in each diamond.
References
Conway, J. H. and Coxeter, H. S. M. ``Triangulated Polygons and Frieze Patterns.'' Math. Gaz. 57, 87-94, 1973. Conway, J. H. and Guy, R. K. In The Book of Numbers. New York: Springer-Verlag, pp. 74-76 and 96-97, 1996.
- Slope
- Slothouber-Graatsma Puzzle
- Slutzky-Yule Effect
- Sluze Pearls
- Smale-Hirsch Theorem
- Smale Horseshoe Map
- Small Cubicuboctahedron
- Small Ditrigonal Dodecacronic Hexecontahedron
- Small Ditrigonal Dodecicosidodecahedron
- Small Ditrigonal Icosidodecahedron
- Small Dodecacronic Hexecontahedron
- Small Dodecahemicosacron
- Small Dodecahemicosahedron
- Small Dodecahemidodecacron
- Small Dodecahemidodecahedron
- Small Dodecicosacron
- Small Dodecicosahedron
- Small Dodecicosidodecahedron
- Small Hexacronic Icositetrahedron
- Small Hexagonal Hexecontahedron
- Small Hexagrammic Hexecontahedron
- Small Icosacronic Hexecontahedron
- Small Icosicosidodecahedron
- Small Icosihemidodecacron
- Small Icosihemidodecahedron