SOLUTION: What is a complex plane?

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Question 842176: What is a complex plane?
Answer by richwmiller(17219) About Me  (Show Source):
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The set of all complex numbers. Just as all real numbers can be imagined as sitting on a line, all complex numbers can be thought of as points in a plane.
The plane of complex numbers spanned by the vectors 1 and i, where i is the imaginary number. Every complex number corresponds to a unique point in the complex plane. The line in the plane with i = 0 is the real line. The complex plane is sometimes called the Argand plane or Gauss plane, and a plot of complex numbers in the plane is sometimes called an Argand diagram.
The complex plane together with the point at infinity C union {infinity} is known as the Riemann sphere or extended complex plane and denoted C^* or C^^. However, the notation C^* is also used to denote the punctured plane C-{0}.