Complete Definition of "quaternion"

English
wikipedia

Etymology
From ME. quaternioun#Middle English|quaternioun, from LL. quaternio#Latin|quaterniō, from quaterni#Latin|quaternī (ablative form of quater#Latin|quater, “four times”) + -ion#Latin|-iōn, “-ion#English|-ion”.<ref name"D.C-etym">Dictionary.com Unabridged (v 1·1)</ref><ref name"AHD-etym">The American Heritage<sup>®</sup> Dictionary of the English Language, Fourth Edition</ref><ref name="COED-etym&sense">The Concise Oxford English Dictionary [Eleventh Edition]</ref>

Pronunciation
a|RP IPA|/kwɒˈtɜːniɒn/

Noun
en-noun

  1. A group or set of four people or things.<ref name="COED-etym&sense"/>
  2. context|mathematics A four-dimensional hypercomplex number that consists of a real dimension and 3 imaginary ones (i, j, k) that are each a square root of -1. They are commonly used in vector mathematics and three-dimensional games. Quaternion multiplication is the most common technique used by mathematicians to avoid gimbal lock when rotating vectors.<ref name="COED-etym&sense"/>

Translations
trans-top|Mathematical sense
Dutch: t+|nl|quaternion|n
French: t-|fr|quaternion|m
trans-mid
Italian: t-|it|quaternione|m
Russian: t|ru|кватернион|m|sc=Cyrl
trans-bottom

References
<references/>

et:quaternion
io:quaternion
nl:quaternion
ru:quaternion
vi:quaternion
zh:quaternion

Revision and Credits for"quaternion"
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