U+23B6 "⎶" Bottom Square Bracket over Top Square Bracket Unicode Character

U+23B6 "⎶" Bottom Square Bracket over Top Square Bracket is a specialized typographic symbol found in the Miscellaneous Technical block, designed for use in mathematical notation and technical diagrams. It visually represents a bottom square bracket placed directly above a top square bracket, creating a stacked bracket configuration that can indicate a specific range, interval, or structural grouping within a formula. This character is particularly useful in contexts such as typesetting large delimiters or braces in technical documentation, where standard bracket characters may not adequately convey the intended spatial relationship. Its inclusion in Unicode ensures consistent representation across different platforms and fonts, supporting precise communication in fields like mathematics, engineering, and computer science.

General Properties

Code Point	U+23B6
Version Added	3.2
Name	Bottom Square Bracket over Top Square Bracket
Block	Miscellaneous Technical
General Category	Other Symbol
Canonical Combining Class	Not Reordered
Bidirectional Class	Other Neutral

Encodings

HTML Decimal Encoding	⎶
HTML Hex Encoding	⎶
UTF-8 Encoding	0xE2 0x8E 0xB6
UTF-16 Encoding	0x23B6
UTF-32 Encoding	0x000023B6
C/C++/Java Escape	\u23b6

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