Argand diagram

An Argand diagramMathworldPlanetmath is the graphical representation of complex numbersMathworldPlanetmathPlanetmath written in polar coordinates. For example, if z is a complex number, then z can be written as reiθ, where r is the length of z considered as a vector (x,y)2, with z=x+yi, and θ is the value such that tanθ=yx, and can be interpreted as the angle z makes with the x-axis. The Argand diagram of z is thus

Argand is the name of Jean-Robert Argand, the Frenchman who is credited with the geometric interpretationMathworldPlanetmathPlanetmath of the complex numbers history/Mathematicians/Argand.html[Biography]

Title Argand diagram
Canonical name ArgandDiagram
Date of creation 2013-03-22 11:57:25
Last modified on 2013-03-22 11:57:25
Owner CWoo (3771)
Last modified by CWoo (3771)
Numerical id 10
Author CWoo (3771)
Entry type Definition
Classification msc 28A10
Classification msc 30-00
Related topic Complex