matrix groups
| GL(n,F) | The general linear group. Invertible n × n matrices with entries in the field F. |
| SL(n,F) | The special linear group. Determinant 1 n × n matrices with entries in F. |
| O(n) | orthogonal n × n matrices. |
| SO(n) | orthogonal n × n matrices with determinant 1. |
| U(n) | unitary n × n matrices. |
| SU(n) | unitary n × n matrices with determinant 1. |
| AGL(n,F) | affine transformations on Fn. |
| PGL(n,F) | projective transformations on n–1 dimensional projective space over F. |
| Lorentz group | the linear isometries (see linear map) of Minkowski space. |
| Sp(2n,F) | sympletic group of those 2n × 2n matrices M over F satisfying MTΩM = Ω, where  |
See also Lie groups, linear groups.
- confocal conics
- conformable
- conformal
- conformally equivalent
- confounding variable
- congruence
- congruence class
- congruence equation
- congruent figures
- conic
- conical pendulum
- conjecture
- conjugacy class
- conjugate
- conjugate
- conjugate
- conjugate angles
- conjugate axis
- conjugate diameters
- conjugate subgroups
- conjugate surds
- conjugation
- conjunction
- conjunctive normal form
- connected