How do you graph a complex equation?

Answer 1

"Color wheel graphs" are commonly used. At each point in the complex plane, the graph is a color, where the brightness represents the magnitude, and the hue represents the complex angle.

Thus, positive values are cyan, negative values are red, and pure imaginary values are green or magenta. Other complex numbers are mixtures of these. Zero is black, and infinity is white. (Other schemes are also in use)