Check out the Riemann sphere https://en.wikipedia.org/wiki/Riemann_sphere https://en.wikipedia.org/wiki/Riemann_sphere I thought it was cool when I first saw i

Check out the Riemann sphere https://en.wikipedia.org/wiki/Riemann_sphere https://en.wikipedia.org/wiki/Riemann_sphere I thought it was cool when I first saw it. Infinity in the complex plane is one of the poles.