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The '''complex plane''' is one representation of the [[complex number]]s.  It is a [[coordinate plane]] with two perpendicular axes, the real axis (typically plotted as the horizontal axis) and the imaginary axis (typically plotted as the vertical axis).  Any [[complex number]] <math>z</math> can be plotted on it, with the [[real part]] <math>\mathrm{Re}(z)</math> as the real (horizontal) coordinate and the [[imaginary part]] <math>\mathrm{Im}(z)</math> as the imaginary (vertical) coordinate.  The intersection of the two axes (the [[origin]] of the coordinate system) corresponds to the complex number [[zero (constant) | 0]], while a point two units to the right and one unit down from the origin corresponds to the complex number <math>2 - i</math>.

=== See also ===

* [[Complex analysis]]
* [[Vector]]

[[Category:Definition]]
[[Category:Complex numbers]]