In an inner product space V then |〈v,w〉| ≤ ∥v∥×∥w∥ for any v,w ∈V, with equality if and only if v,w are linearly dependent. Thus, the angle between non-zero vectors v,w can be defined as arccos (〈v,w〉/(∥v∥×∥w∥)).
If X and Y are two random variables then
with equality if and only if P(aX = bY) = 1 for some real constants a and b, at least one of which is non-zero.
- supremum
- surd
- sure thing principle
- surf
- surface
- surface-accessibility shading
- surface acoustic wave
- surface area
- surface boundary layer
- surface brightness
- surface-channel FET
- surface charge density
- surface-colour map
- surface conductivity
- surface-extended X-ray absorption fine-structure spectroscopy
- surface finish
- surface flux
- surface-forces apparatus
- surface gravity
- surface insulation
- surface integral
- surface(in topology)
- surface inversion
- surface leakage
- surface mount technology