A sinusoid or sine wave is a periodic wave whose shape is the trigonometric sine function.
Sine wave is heavily related to circular motions:
A sinusoid has the following form:
where
is the amplitude is the independent variable (often representing time in seconds) is the frequency, measured in hertz (Hz), representing the number of oscillations per second is the angular frequency, in units of radians per second is the phase (in radians), specifying the starting point of the oscillation at 1
Properties
Related
- Euler’s formula - Transform between the polar form of a complex number into sinusoids
- Fourier series - Decompose functions into linear combination of sinusoids