Radial velocity is a measurement of how many

radians per second that a

signal travels. If we look at a

sine or

cosine wave as a rotating

vector, the

radial velocity is the

angular speed of the vector. Radial velocity is represented by the small greek letter omega (ω). Radial velocity can be calculated from

frequency using the formula:

ω = 2πf

Where f is the frequency of the waveform.