- real field
- real form of complex Lie algebra
- real function
- real holomorphy ring
- real ideal
- realization
- realization for transfer function matrix
- realization of a matrix A
- realization of an abstract complex
- realization of state space
- realization theorem
- realize
- real line
- real linear space
- real linear space
- real matrix
- realm of word
- real normal matrix
- real n-plane bundle
- real null point theorem
- real number
- real number
- real number axis
- real number system
- realoptions