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⟨ ⟩

    From Wiktionary, the free dictionary

    ⟨U+27E8,⟨
    MATHEMATICAL LEFT ANGLE BRACKET
    ←⟧
    [U+27E7]    		Miscellaneous Mathematical Symbols-A⟩ →
    [U+27E9]

    ⟩U+27E9,⟩
    MATHEMATICAL RIGHT ANGLE BRACKET
    ←⟨
    [U+27E8]    		Miscellaneous Mathematical Symbols-A⟪ →
    [U+27EA]
    Character variations
    ⧼U+29FC,⧼
    LEFT-POINTING CURVED ANGLE BRACKET
    ←⧻
    [U+29FB]    		Miscellaneous Mathematical Symbols-B⧽ →
    [U+29FD]
    ⧽U+29FD,⧽
    RIGHT-POINTING CURVED ANGLE BRACKET
    ←⧼
    [U+29FC]    		Miscellaneous Mathematical Symbols-B⧾ →
    [U+29FE]
    See also:‹ ›,bra-ket,⟪ ⟫,〈 〉,andく

    Translingual

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    Alternative forms

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    Symbol

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    ⟨ ⟩ (English symbol nameangle brackets)

    1. (mathematics)Encloses theinner product of two vectors.
    2. (mathematics)Denotes theexpectation value of something.

    Punctuation mark

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    ⟨ ⟩

    1. (linguistics)Enclosesorthographictranscription.
      Coordinate terms:/ /,[ ],⫽ ⫽,| |,‖ ‖,{ },! !,\ \,⸢ ⸣
    2. (papyrology, epigraphy)Encloses restored writing that was mistakenly omitted by the original scribe.

    Usage notes

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    • For these uses, the charactersU+27E8MATHEMATICAL LEFT ANGLE BRACKET andU+27E9MATHEMATICAL RIGHT ANGLE BRACKET should be used.
    • The charactersU+2329LEFT-POINTING ANGLE BRACKET andU+232ARIGHT-POINTING ANGLE BRACKET are "deprecated and are strongly discouraged for mathematical use because of their canonical equivalence to CJK punctuation"U+3008LEFT ANGLE BRACKET〈 andU+3009RIGHT ANGLE BRACKET〉.[1]

    References

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    1. ^The Unicode Standard, Version 15.1‎[1] (pdf), 12 September 2023, Miscellaneous Technical Range: 2300–23FF
    Retrieved from "https://en.wiktionary.org/w/index.php?title=⟨_⟩&oldid=84592489"
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