X̂

Latin letter X with circumflex
X with circumflex
X̂x̂
Usage
Typealphabetic
Language of originAleut language, Haida language
Phonetic usage[χ]
Unicode codepointU+0058 + U+0302, U+0078 + U+0302
History
Development
  • X̂x̂
Other
This article contains phonetic transcriptions in the International Phonetic Alphabet (IPA). For an introductory guide on IPA symbols, see Help:IPA. For the distinction between [ ], / / and ⟨ ⟩, see IPA § Brackets and transcription delimiters.

X̂ is the Latin letter X with a circumflex. The letter is used in the modern orthography of the Aleut language[1] and in the current Alaska Native Language Center alphabet of the Haida language.[2] In both cases, it represents the sound [χ].

In mathematics, x̂ often refers to the unit vector in the +X direction. In statistics, it can also represent the predicted value for x, consistent with the hat notation.[3]


Character information
Preview X x ̂
Unicode name LATIN CAPITAL LETTER X LATIN SMALL LETTER X COMBINING CIRCUMFLEX
Encodings decimal hex dec hex dec hex
Unicode 88 U+0058 120 U+0078 770 U+0302
UTF-8 88 58 120 78 204 130 CC 82
Numeric character reference X X x x ̂ ̂

References

  1. ^ Bergsland, Knut (1994). Aleut Dictionary = Unangam Tunudgusii: an |D with hook and tail|ᶑ lexicon of the Aleutian, Pribilof, and Commander Islands Aleut language. Fairbanks, AK: Alaska Native Language Center, University of Alaska. ISBN 978-1-55500-047-9.
  2. ^ Lachler, Jordan. "Ways of Writing Haida". Retrieved 25 November 2012.
  3. ^ Bailey, Michael (2021). Real Stats: Using Econometrics for Political Science and Public Policy. pp. 310–311. ISBN 978-0-19-085949-7.
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