U+21A7 "↧" Downwards Arrow from Bar Unicode Character

Unicode Version 17.0

U+21A7 "↧" Downwards Arrow from Bar is a typographic symbol that depicts a vertical arrow pointing downward with a horizontal bar across its top, and it is commonly used in mathematical notation, engineering diagrams, and computer science to indicate a mapping, a reduction, or a downward operation such as a projection or a minimum value in lattice theory. In logic and formal systems, it can represent the bottom element or infimum, while in interface design or technical documentation it may denote a drop-down menu or a downward movement that starts from a fixed starting point. This character belongs to the Arrows block in the Unicode standard and is distinct from other similar arrows due to its bar, which anchors the arrow at a specific baseline.

General Properties

Code Point U+21A7
Version Added 1.1
Name Downwards Arrow from Bar
Unicode 1.0 Name Down Arrow from Bar
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 0x86 0xA7
UTF-16 Encoding 0x21A7
UTF-32 Encoding 0x000021A7
C/C++/Java Escape \u21a7

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