U+1D7F5 "𝟵" Mathematical Sans-Serif Bold Digit Nine Unicode Character
Unicode Version 17.0
𝟵
U+1D7F5 "𝟵" Mathematical Sans-Serif Bold Digit Nine is a stylized numeral belonging to the Mathematical Alphanumeric Symbols block, designed for use in mathematical and scientific notation where a clear, bold, sans-serif appearance is needed for the digit nine. This character allows writers and publishers to maintain visual consistency in equations and technical documents that require distinct typographic styles, such as distinguishing variables from constants or denoting matrix elements. Enclosed within the range U+1D7EC to U+1D7FF for digits zero through nine in this style, it specifically represents the bold sans-serif variant of the numeral nine, supporting precise communication in advanced mathematics and computing contexts.
General Properties
| Code Point | U+1D7F5 |
| Version Added | 3.1 |
| Name | Mathematical Sans-Serif Bold Digit Nine |
| Block | Mathematical Alphanumeric Symbols |
| General Category | Decimal Number |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | European Number |
| Decomposition Type | Font |
| Decomposition Mapping | "9" U+0039 Digit Nine |
Encodings
| HTML Decimal Encoding | 𝟵 |
| HTML Hex Encoding | 𝟵 |
| UTF-8 Encoding | 0xF0 0x9D 0x9F 0xB5 |
| UTF-16 Encoding | 0xD835 0xDFF5 |
| UTF-32 Encoding | 0x0001D7F5 |
| C/C++/Java Escape | \ud835\udff5 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| Numeric Type | Decimal |
| Numeric Value | 9 |
| Line Break | Numeric |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "9" U+0039 Digit Nine |
| NFKC Simple Casefold | "9" U+0039 Digit Nine |
| Script | Common |
| Script Extensions | Common |
| Indic Syllabic Category | Other |
| ID Continue | Yes |
| XID Continue | Yes |
| Math | Yes |
| Other Math | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Numeric |
| Sentence Break | Numeric |