Argand diagram

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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

Words nearby Argand diagram

argal, argali, Argall, argan, Argand burner, Argand diagram, Argand lamp, argan oil, Argas, argasid, Argasidae

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use Argand diagram in a sentence

Now, Thorne is out with a new diagram-heavy, 300-page book detailing how he shaped the science that powers the movie.
Meet Kip Thorne, the Man Who Crafted the Artful Science of ‘Interstellar’|Asawin Suebsaeng|November 14, 2014|DAILY BEAST
There are indications of this early on, particularly in a scene in which Selina tries to teach Pervus to diagram sentences.
American Dreams, 1924: ‘So Big’ by Edna Ferber|Nathaniel Rich|March 29, 2014|DAILY BEAST
But nobody can look at that diagram and think about anything other than an impressively sized phallus.
11 News Anchor Flubs: Tom Brokaw on Ambien, Weather Penis, and More|Alec Kubas-Meyer|December 18, 2013|DAILY BEAST
Deep in the shadows they aimed a pinpoint flashlight at a diagram drawn from a recent satellite image.
The Night the SEALS Captured the Butcher of Fallujah|Patrick Robinson|November 11, 2013|DAILY BEAST

I ask Lynch to draw a diagram to show the before and after of TM.
David Lynch Discusses Transcendental Meditation in Los Angeles|Sean Macaulay|April 7, 2013|DAILY BEAST
In the diagram the horizontal arrows represent such mere banking operations, not true circulation.
Readings in Money and Banking|Chester Arthur Phillips
Odd differences, reflecting differences of intelligence, show themselves in the management of this diagram of the human face.
Children's Ways|James Sully
An example of a diagram of this kind has perhaps survived in a comparatively late writer, viz.
The Modes of Ancient Greek Music|David Binning Monro
The diagram represents the position of the troops as witness from Franklin's Head-quarters, looking south.
The Boys of '61|Charles Carleton Coffin.
I made him a diagram of Breadalbane Terrace, and a plan of the hall and staircase, on my dinner-card.
Penelope's Experiences in Scotland|Kate Douglas Wiggin

British Dictionary definitions for Argand diagram

Argand diagram

/ (ˈɑːɡænd) /

noun

maths a diagram in which complex numbers are represented by the points in the plane the coordinates of which are respectively the real and imaginary parts of the number, so that the number x + i y is represented by the point (x, y), or by the corresponding vector < x, y >. If the polar coordinates of (x, y) are (r, θ), r is the modulus and θ the argument of x + i ySee also amplitude (def. 5)

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 Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012