U+1D55E "𝕞" Mathematical Double-Struck Small M Unicode Character
Unicode Version 17.0
𝕞
U+1D55E "𝕞" Mathematical Double-Struck Small M is a typographic symbol from the Mathematical Alphanumeric Symbols block, designed for use in mathematical and scientific notation where a bold blackboard style is needed, such as in set theory or number systems. It represents the lowercase letter "m" in a double struck font, which mimics the look of letters written on a chalkboard with a slight outline effect. This character is typically employed to denote specific mathematical objects, like the set of mass values or a variable in formal logic, and it is distinct from the standard Latin small "m" to avoid confusion in technical contexts.
General Properties
| Code Point | U+1D55E |
| Version Added | 3.1 |
| Name | Mathematical Double-Struck Small M |
| Block | Mathematical Alphanumeric Symbols |
| General Category | Lowercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Font |
| Decomposition Mapping | "m" U+006D Latin Small Letter M |
Encodings
| HTML Decimal Encoding | 𝕞 |
| HTML Hex Encoding | 𝕞 |
| UTF-8 Encoding | 0xF0 0x9D 0x95 0x9E |
| UTF-16 Encoding | 0xD835 0xDD5E |
| UTF-32 Encoding | 0x0001D55E |
| C/C++/Java Escape | \ud835\udd5e |
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 | "m" U+006D Latin Small Letter M |
| NFKC Simple Casefold | "m" U+006D Latin Small Letter M |
| 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 |