Complex numbers are not just of mathematical interest, they are also vital in engineering and science, so a complex type is an important part of any type library. A complex number is made of two parts--the real and imaginary parts. As the name suggests, an imaginary number is not real, and cannot be treated as real.
In mathematics, complex numbers are usually represented as coordinates in two-dimensional space. If a real number can be thought of as being one of an infinite number of points on the x axis, an imaginary number can be thought of being one of an infinite number of points on the y axis. The only intersection between these two is the origin and since zero is zero, is nothing, it can be a zero real number or a zero ...
