U+29F3 "⧳" Error-Barred Black Circle Unicode Character

U+29F3 "⧳" Error-Barred Black Circle is a specialized typographic symbol found in the Miscellaneous Mathematical Symbols-B block, depicting a solid black circle with a horizontal bar intersecting its center. It is primarily used in technical and scientific contexts, such as error analysis or statistical diagrams, to represent a value with a associated error margin or a range that has been closed or bounded. Unlike common mathematical symbols like ≥ or ≤, this glyph is rarely seen outside niche applications and often requires a Unicode-compatible font for proper display. Its design connotes both the concept of a defined limit and the presence of uncertainty, making it a concise visual tool for conveying combined constraints in formal notation.

General Properties

Code Point	U+29F3
Version Added	3.2
Name	Error-Barred Black Circle
Block	Miscellaneous Mathematical Symbols-B
General Category	Math Symbol
Canonical Combining Class	Not Reordered
Bidirectional Class	Other Neutral

Encodings

HTML Decimal Encoding	⧳
HTML Hex Encoding	⧳
UTF-8 Encoding	0xE2 0xA7 0xB3
UTF-16 Encoding	0x29F3
UTF-32 Encoding	0x000029F3
C/C++/Java Escape	\u29f3

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