U+23AA "⎪" Curly Bracket Extension Unicode Character

Unicode Version 17.0

U+23AA "⎪" Curly Bracket Extension is a graphic symbol used primarily in mathematical and technical notation to represent the vertical middle portion of a large curly brace that spans multiple lines of text. Rather than being a standalone punctuation mark, it functions as a building block for constructing tall brackets by stacking with other bracket extension and corner characters, such as U+23A7 for the top and U+23A9 for the bottom of a left brace. This character ensures that displayed braces align properly in multi-line equations or sets, maintaining visual continuity without gaps. It is part of the Miscellaneous Technical block and is often employed in plain text environments where formatting rich mathematical expressions without graphics is necessary.

General Properties

Code Point U+23AA
Version Added 3.2
Name Curly Bracket Extension
Block Miscellaneous Technical
General Category Math Symbol
Canonical Combining Class Not Reordered
Bidirectional Class Other Neutral

Encodings

HTML Decimal Encoding ⎪
HTML Hex Encoding ⎪
UTF-8 Encoding 0xE2 0x8E 0xAA
UTF-16 Encoding 0x23AA
UTF-32 Encoding 0x000023AA
C/C++/Java Escape \u23aa

Unicode Properties

NFC Quick Check Yes
NFD Quick Check Yes
NFKC Quick Check Yes
NFKD Quick Check Yes
Numeric Type None
Numeric Value NaN
Line Break Alphabetic
Script Common
Script Extensions Common
Indic Syllabic Category Other
Pattern Syntax Yes
Math Yes
Vertical Orientation Rotated
Grapheme Base Yes
Grapheme Cluster Break Other
Word Break Other
Sentence Break Other