# Argand diagram

### noun Mathematics.

a Cartesian coordinate system consisting of two perpendicular axes for graphing complex numbers, the real part of a number being plotted along the horizontal axis and the imaginary part along the vertical axis.

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Compare imaginary axis, real axis.

## Origin of Argand diagram

1905–10; named after Jean-Robert Argand (1768–1822), Swiss mathematician

Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

## Argand diagram

### noun

## Word Origin for Argand diagram

C19: named after Jean-Robert Argand (1768–1822), French mathematician

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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