The angular position of a quantity. For example, the phase of a function 
as a function of time is
 |
The complex argument of a complex number is sometimes also called the phase.
Phase
See also
Complex Argument, Complex Number, Phase Curve, Phase Flow, Phase Plane, Phase Portrait, Phase Space, Phase Transition, Phasor, RetardanceExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Phase." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Phase.html