Complex exponentials spin When we put time up in the exponent of a complex exponential, the complex number it represent rotates in a circle in the complex plane. You can think of it as a Spinning Number! Created by Willy McAllister. video on YouTube Comment (cancel reply) Name E-mail Send me an email when someone comments. Submit Comments are held for moderation. There will be a delay before they appear. Comments may include Markdown. To share something privately: Contact me.