Stomachion
A Dissection game similar to Tangrams described in fragmentary manuscripts attributed toArchimedes 
and was referred to as the Loculus of Archimedes (Archimedes' box) in Latin texts. The wordStomachion has as its root the Greek word for stomach. The game consisted of 14 flat pieces of various shapes arranged in theshape of a square. Like Tangrams, the object is to rearrange the pieces to form interesting shapes.
References
Rorres, C. ``Stomachion Introduction.'' http://www.mcs.drexel.edu/~crorres/Archimedes/Stomachion/intro.html. Rorres, C. ``Stomachion Construction.'' http://www.mcs.drexel.edu/~crorres/Archimedes/Stomachion/construction.html.
- Trigonal Dipyramid
- Trigonal Dodecahedron
- Trigonometric Functions
- Trigonometric Series
- Trigonometric Substitution
- Trigonometry
- Trigonometry Values--0
- Trigonometry Values Pi
- Trigonometry Values Pi/10
- Trigonometry Values Pi/11
- Trigonometry Values Pi/12
- Trigonometry Values Pi/15
- Trigonometry Values Pi/16
- Trigonometry Values Pi/17
- Trigonometry Values Pi/18
- Trigonometry Values Pi/2
- Trigonometry Values Pi/20
- Trigonometry Values Pi/3
- Cycle (Circle)
- Cycle Graph
- Cycle (Map)
- Cycle (Permutation)
- Cyclic Graph
- Cyclic Group
- Cyclic Hexagon