So something that is entirely revolving once a second is spinning at 2 * pi Hertz?
Hertz just thinking about it.
https://en.wikipedia.org/wiki/Angular_frequency
It's very convenient when you're working with periodic signals (say, when discussing the FFT); you don't have to drag a 2pi factor around everywhere.
alt Hacker News
https://en.wikipedia.org/wiki/Angular_frequency
It's very convenient when you're working with periodic signals (say, when discussing the FFT); you don't have to drag a 2pi factor around everywhere.