Formulas
- Cayley configuration space
- Cayley graph
- Cellular homology
- Center (category theory)
- Centered hexagonal number
- Centering matrix
- Central binomial coefficient
- Central product
- Central series
- Central simple algebra
- Central subgroup
- Centralizer and normalizer
- Centrosymmetric matrix
- Charlier polynomials
- Charts on SO(3)