Home U+2190 to U+21FF Arrows
Glyph for U+21CE
Source: Noto Sans Math

U+21CE LEFT RIGHT DOUBLE ARROW WITH STROKE

U+21CE was added to Unicode in version 1.1 (1993). It belongs to the block U+2190 to U+21FF Arrows in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Math Symbol and is commonly used, that is, in no specific script.

The glyph is a Canonical composition of the glyphs Glyph for U+21D4 Left Right Double Arrow, Glyph for U+0338 Combining Long Solidus Overlay. It has a Neutral East Asian Width. In bidirectional context it acts as Other Neutral and is not mirrored. In text U+21CE behaves as Alphabetic regarding line breaks. It has type Other for sentence and Other for word breaks. The Grapheme Cluster Break is Any.

The CLDR project labels this character “left right double arrow stroke” for use in screen reading software. It assigns additional tags, e.g. for search in emoji pickers: left right double arrow stroke.

The Wikipedia has the following information about this codepoint:

An arrow is a graphical symbol, such as ← or →, or a pictogram, used to point or indicate direction. In its simplest form, an arrow is a triangle, chevron, or concave kite, usually affixed to a line segment or rectangle, and in more complex forms a representation of an actual arrow (e.g. ➵ U+27B5). The direction indicated by an arrow is the one along the length of the line or rectangle toward the single pointed end.

Representations

System Representation
8654
UTF-8 E2 87 8E
UTF-16 21 CE
UTF-32 00 00 21 CE
URL-Quoted %E2%87%8E
HTML-Escape ⇎
Wrong windows-1252 Mojibake ⇎
HTML-Escape ⇎
HTML-Escape ⇎
LATEX \nLeftrightarrow

Elsewhere

Complete Record

Property Value
Age 1.1 (1993)
Unicode Name LEFT RIGHT DOUBLE ARROW WITH STROKE
Unicode 1 Name
Block Arrows
General Category Math Symbol
Script Common
Bidirectional Category Other Neutral
Combining Class Not Reordered
Decomposition Type Canonical
Decomposition Mapping Glyph for U+21D4 Left Right Double Arrow Glyph for U+0338 Combining Long Solidus Overlay
Lowercase
Simple Lowercase Mapping Glyph for U+21CE Left Right Double Arrow with Stroke
Lowercase Mapping Glyph for U+21CE Left Right Double Arrow with Stroke
Uppercase
Simple Uppercase Mapping Glyph for U+21CE Left Right Double Arrow with Stroke
Uppercase Mapping Glyph for U+21CE Left Right Double Arrow with Stroke
Simple Titlecase Mapping Glyph for U+21CE Left Right Double Arrow with Stroke
Titlecase Mapping Glyph for U+21CE Left Right Double Arrow with Stroke
Case Folding Glyph for U+21CE Left Right Double Arrow with Stroke
ASCII Hex Digit
Alphabetic
Bidi Control
Bidi Mirrored
Bidi Paired Bracket Glyph for U+21CE Left Right Double Arrow with Stroke
Bidi Paired Bracket Type None
Cased
Composition Exclusion
Case Ignorable
Full Composition Exclusion
Changes When Casefolded
Changes When Casemapped
Changes When NFKC Casefolded
Changes When Lowercased
Changes When Titlecased
Changes When Uppercased
Dash
Deprecated
Default Ignorable Code Point
Diacritic
East Asian Width Neutral
Emoji Modifier Base
Emoji Component
Emoji Modifier
Emoji
Emoji Presentation
Extender
Extended Pictographic
FC NFKC Closure Glyph for U+21CE Left Right Double Arrow with Stroke
Grapheme Cluster Break Any
Grapheme Base
Grapheme Extend
Grapheme Link
Hex Digit
Hangul Syllable Type Not Applicable
Hyphen
ID Continue
Ideographic
ID Start
IDS Binary Operator
IDS Trinary Operator and
Indic Mantra Category
Indic Positional Category NA
Indic Syllabic Category Other
ISO 10646 Comment
Joining Group No_Joining_Group
Join Control
Jamo Short Name
Joining Type Non Joining
Line Break Alphabetic
Logical Order Exception
Math
Noncharacter Code Point
NFC Quick Check Yes
NFD Quick Check No
NFKC Casefold Glyph for U+21CE Left Right Double Arrow with Stroke
NFKC Quick Check Yes
NFKD Quick Check No
Numeric Type None
Numeric Value not a number
Other Alphabetic
Other Default Ignorable Code Point
Other Grapheme Extend
Other ID Continue
Other ID Start
Other Lowercase
Other Math
Other Uppercase
Pattern Syntax
Pattern White Space
Prepended Concatenation Mark
Quotation Mark
Radical
Regional Indicator
Sentence Break Other
Simple Case Folding Glyph for U+21CE Left Right Double Arrow with Stroke
Script Extension
Soft Dotted
Sentence Terminal
Terminal Punctuation
Unified Ideograph
Vertical Orientation R
Variation Selector
Word Break Other
White Space
XID Continue
XID Start
Expands On NFC
Expands On NFD
Expands On NFKC
Expands On NFKD