phase
Sign in to saveposition of a point in time (an instant) on a waveform cycle
Article
Plot of one cycle of a sinusoidal function. The phase for each argument value, relative to the start of the cycle, is shown at the bottom, in degrees from 0° to 360° and in radians from 0 to 2π.
In physics and mathematics, the phase (symbol φ or ϕ) of a wave or other periodic function