X̂ Explained

X with circumflex
Letter:X̂x̂
Language:Aleut language, Haida language
Phonemes:pronounced as /link/
Unicode:U+0058 + U+0302, U+0078 + U+0302
Type:alphabet
Typedesc:ic

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 pronounced as /link/.

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]

Notes and References

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

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