U+21C7 "⇇" Leftwards Paired Arrows Unicode Character

Unicode Version 17.0

U+21C7 "⇇" Leftwards Paired Arrows is a typographic symbol classified under the "Arrows" block, specifically representing two parallel leftward arrows that are often used to indicate a bidirectional process or a two-way communication channel, with emphasis on the leftward direction. It conveys the notion of simultaneous movement or exchange in a leftward orientation, making it useful in fields like physics for representing conjugate pairs, in logic for double implications, or in diagrams showing synchronous processes. The character is visually distinct from a standard arrow by its dual design, and it can be found in mathematical notation, technical documentation, and user interface icons where a clear, non-standard directional signal is needed. As an entity encoded in the Universal Coded Character Set, it ensures consistent representation across different platforms and software for specialized symbolic communication.

General Properties

Code Point U+21C7
Version Added 1.1
Name Leftwards Paired Arrows
Unicode 1.0 Name Left Paired Arrows
Block Arrows
General Category Other Symbol
Canonical Combining Class Not Reordered
Bidirectional Class Other Neutral

Encodings

HTML Decimal Encoding ⇇
HTML Hex Encoding ⇇
UTF-8 Encoding 0xE2 0x87 0x87
UTF-16 Encoding 0x21C7
UTF-32 Encoding 0x000021C7
C/C++/Java Escape \u21c7

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
Other Math Yes
Vertical Orientation Rotated
Grapheme Base Yes
Grapheme Cluster Break Other
Word Break Other
Sentence Break Other