cube root of unity
Properties: (i) 
(see conjugate), (ii) 1 + ω + ω2 = 0.
- concentric
- conclusion
- conclusion
- concrete number
- concurrent
- concyclic
- conditional
- conditional distribution
- conditional equation
- conditional expectation
- conditionally convergent
- conditional probability
- condition, necessary and sufficient
- cone
- confidence interval
- confidentiality
- configuration
- configuration space
- confirm
- confocal conics
- conformable
- conformal
- conformally equivalent
- confounding variable
- congruence