| X with circumflex | |
|---|---|
| X̂x̂ | |
| Usage | |
| Type | alphabetic |
| Language of origin | Aleut language,Haida language |
| Sound values | [χ] |
| In Unicode | U+0058 + U+0302, U+0078 + U+0302 |
| History | |
| Development | |
| This article containsphonetic transcriptions in theInternational Phonetic Alphabet (IPA). For an introductory guide on IPA symbols, seeHelp:IPA. For the distinction between[ ],/ / and ⟨ ⟩, seeIPA § Brackets and transcription delimiters. | |
X̂ is theLatin letterX with acircumflex. The letter is used in the modernorthography of theAleut language[1] and in the currentAlaska Native Language Center alphabet of theHaida language.[2] In both cases, it represents the sound[χ].
In mathematics, x̂ often refers to theunit vector in the +X direction. In statistics, it can also represent the predicted value for x, consistent with thehat notation.[3]
| 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 | ̂ | ̂ |
 | This article related to theLatin script is astub. You can help Wikipedia byexpanding it. |