Wave number

Wave number, often defined by the symbol k is the inverse of the radial distance of a wave. It is possible to calculate the wave number using this equation,

k = 1/distance (radians)

however by finding the angular frequency there is another equation to use. If the wave is traveling along the x-axis in the positive direction, use:

k = 𝑤/v

where 'v' is the velocity. Or if the wave is traveling in the negative direction, use:

k = -𝑤/v