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.
- Evans Point
- Eve
- Even Function
- Even Number
- Eventually Periodic
- Everett Interpolation
- Everett's Formula
- Eversion
- Evolute
- Exact Covering System
- Exact Differential
- Exactly One
- Exactly When
- Exact Period
- Exact Trilinear Coordinates
- Excenter
- Excenter-Excenter Circle
- Excentral Triangle
- Excess
- Excess Coefficient
- Excessive Number
- Excircle
- Excision Axiom
- Excluded Middle Law
- Excludent