Riemann sphere is the [[one-point compactification]] of the complex plane, it can be constructed via stereographic projection of the complex plane onto the unit sphere. The Riemann sphere is an example of a Riemann surface. | Riemann sphere is the [[one-point compactification]] of the complex plane, it can be constructed via stereographic projection of the complex plane onto the unit sphere. The Riemann sphere is an example of a Riemann surface. |