U+1D6C6 "𝛆" Mathematical Bold Small Epsilon Unicode Character

Unicode Version 17.0

𝛆

U+1D6C6 "𝛆" Mathematical Bold Small Epsilon is a typographic variant of the Greek letter epsilon, rendered in a bold typeface for use in mathematical notation. It is part of the Mathematical Alphanumeric Symbols block, which was introduced to allow authors to clearly represent variables, constants, and other mathematical concepts without relying on formatting workarounds. This bold epsilon is often used in fields such as set theory, calculus, and differential geometry to denote a small positive quantity, a member of a set, or a specific mathematical function, where the bold weight helps distinguish it from both italic and regular Greek letters. Its inclusion in Unicode ensures consistent display and proper semantic identification across digital platforms.

General Properties

Code Point U+1D6C6
Version Added 3.1
Name Mathematical Bold Small Epsilon
Block Mathematical Alphanumeric Symbols
General Category Lowercase Letter
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right
Decomposition Type Font
Decomposition Mapping "ε" U+03B5 Greek Small Letter Epsilon

Encodings

HTML Decimal Encoding 𝛆
HTML Hex Encoding 𝛆
UTF-8 Encoding 0xF0 0x9D 0x9B 0x86
UTF-16 Encoding 0xD835 0xDEC6
UTF-32 Encoding 0x0001D6C6
C/C++/Java Escape \ud835\udec6

Unicode Properties

NFC Quick Check Yes
NFD Quick Check Yes
Numeric Type None
Numeric Value NaN
Line Break Alphabetic
Lowercase Yes
Cased Yes
Changes When NFKC Casefolded Yes
NFKC Casefold "ε" U+03B5 Greek Small Letter Epsilon
NFKC Simple Casefold "ε" U+03B5 Greek Small Letter Epsilon
Script Common
Script Extensions Common
Indic Syllabic Category Other
ID Start Yes
XID Start Yes
ID Continue Yes
XID Continue Yes
Alphabetic Yes
Math Yes
Other Math Yes
Vertical Orientation Rotated
Grapheme Base Yes
Grapheme Cluster Break Other
Word Break Alphabetic letter
Sentence Break Lower