- relative energy distribution
- relative energy saving ratio
- relative entropy
- relative equilibrium of yin-yang
- relative error
- relative error of an approximation algorithm
- relative extension
- relative extremum
- relative eye relief
- relative feed value
- relative field
- relative fit
- relative fluctuation
- relative fluctuation of density
- relative focal length
- relative frame of reference
- relative frequence
- relative frequency
- relative Frobenius morphism
- relative functor
- relative geometry
- relative gradient
- relative gravity survey
- relative group
- relative growth