Commutator
Let 
, 
, ...be Operators. Then the commutator of and isdefined as
 | (1) |
, 
, ...be constants. Identities include |  |  | (2) |
 | | | (3) |
 | |  | (4) |
 | |  | (5) |
 | |  | (6) |
 | | | (7) |
 | |  | |
| (8) |
The commutator can be interpreted as the ``infinitesimal'' of the commutator of a Lie Group.
Let 
and 
be Tensors. Then
 | (9) |
- Centered Polygonal Number
- Centered Square Number
- Centered Triangular Number
- Center Function
- Center (Group)
- Center of Gravity
- Center of Mass
- Centillion
- Central Angle
- Central Beta Function
- Central Binomial Coefficient
- Central Conic
- Central Difference
- Centralizer
- Central Limit Theorem
- Central Trinomial Coefficient
- Centrode
- Centroid (Function)
- Centroid (Geometric)
- Centroid (Orthocentric System)
- Centroid (Triangle)
- Certificate of Compositeness
- Certificate of Primality
- Cesàro Equation
- Cesàro Fractal