Phase

A Phase is a distinguishable part of a sequence, a cycle or a state occurring over time or over a recurring series of changes.

• Context:
  • It can be a parameter of a trigonometric function representing an harmonic oscillator or wave.
  • It can be an angular function representing a complex number in the Complex Plane, i.e. a Complex Number Argument.
  • It can be a state of matter.
  • It can be a periodic appearance changes of the moon or a planet at a given time with respect to quantity of brightness.
  • It can be related to a system of distributing alternating-current electrical power (i.e. Polyphase system).
  • It can be related to Polymorphism (color phase).
  • It can be related to Algorithm Phase.
• Example(s):
  • Complex Number Argument.
  • Lunar Phase.
• Counter-Example(s):
  • Frequency.
  • Period.
• See: Complex Exponential Function, Harmonic Oscillator, Algorithm Phase, State of Matter, Polyphase system.

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References

2015

• (Wikipedia, 2015) ⇒ http://en.wikipedia.org/wiki/Phase=== 1999 ===
• (Mathworld Wolfram, 1999) ⇒ http://mathworld.wolfram.com/Phase.html
  • QUOTE: The angular position of a quantity. For example, the phase of a function [math]\displaystyle{ cos(\omega\;t+\phi_0) }[/math] as a function of time is [math]\displaystyle{ \phi(t)=\omega\;t+\phi_0 }[/math]

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