Complex Power Functions in Rectangular Coordinates

When we graph a function of a complex variable, we already need two real dimensions for the range, and two more for the domain. The graph, therefore, requires four real dimensions, and to represent it on a plane, or even on a three-dimensional viewing space, requires the use of projections from four-space into lower-dimensional spaces. Since we know how to represent the projections of a hypercube, we can use the same methods to represent the projections of function graphs contained in a hypercube.

The complex identity function
The complex squaring function