出典:Wiktionary
出典:『Wiktionary』 (2026/02/15 00:11 UTC 版)
unit vector (plural unit vectors)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/22 19:24 UTC 版)
In mathematics, a unit vector in a normed vector space is a vector (often a spatial vector) whose length is 1 (the unit length). A unit vector is often denoted by a lowercase letter with a “hat”, like this:
(pronounced "i-hat").