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J with circumflex
J with circumflex
Ĵ ĵ Jh jh Jx jx
Usage
Writing system	Latin script
Type	Alphabet
Language of origin	Esperanto language
Sound values	[ʒ]
In Unicode	U+0134 U+0135
Alphabetical position	14
History
Development	Ιι 𐌉 I i J j ȷ Ĵ ĵ Jh jh Jx jx; ; ; ; ; ; ; ; ; ;
Time period	1887 to present
Other
Writing direction	Left-to-right
	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.

Ĵ or ĵ (J circumflex) is a letter in Esperanto orthography representing the sound [ʒ].^[1]

While Esperanto orthography uses a diacritic for its four postalveolar consonants, as do the Latin-based Slavic alphabets, the base letters are Romano-Germanic. Ĵ is based on the French pronunciation of the letter j to better preserve the shape of borrowings from that language (such as ĵurnalo from journal) than Slavic ž would.

Ĵ is the fourteenth letter in Esperanto orthography. Although it is written as jx and jh respectively in the x-system and h-system workarounds, it is normally written as J with a circumflex: ĵ.

Ĵ is used in the Persian Latin (Rumi) alphabet, equivalent to ژ.^{[citation needed]}

Usage

In mathematics

The letter ĵ is often used to denote a unit vector in mathematics and physics for representing y-vector.

Character mappings

Character information
Preview	Ĵ		ĵ
Unicode name	LATIN CAPITAL LETTER J WITH CIRCUMFLEX		LATIN SMALL LETTER J WITH CIRCUMFLEX
Encodings	decimal	hex	dec	hex
Unicode	308	U+0134	309	U+0135
UTF-8	196 180	C4 B4	196 181	C4 B5
Numeric character reference	Ĵ	Ĵ	ĵ	ĵ
Named character reference	&Jcirc;		&jcirc;