U+1D7C9 "𝟉" Mathematical Sans-Serif Bold Italic Pi Symbol Unicode Character
Unicode Version 17.0
𝟉
U+1D7C9 "𝟉" Mathematical Sans-Serif Bold Italic Pi Symbol is a typographic variant of the Greek lowercase pi, designed to resemble the mathematical constant 3.14159... in a sans-serif typeface with bold weight and italic slant. It belongs to the Mathematical Alphanumeric Symbols block, which provides distinct letterforms for scientific and mathematical notation to avoid confusion with ordinary text. This specific glyph is intended for use in formal mathematical expressions or documents where a modern, clean style is preferred over traditional serif or upright meanings of pi.
General Properties
| Code Point | U+1D7C9 |
| Version Added | 3.1 |
| Name | Mathematical Sans-Serif Bold Italic Pi Symbol |
| Block | Mathematical Alphanumeric Symbols |
| General Category | Lowercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Font |
| Decomposition Mapping | "ϖ" U+03D6 Greek Pi Symbol |
Encodings
| HTML Decimal Encoding | 𝟉 |
| HTML Hex Encoding | 𝟉 |
| UTF-8 Encoding | 0xF0 0x9D 0x9F 0x89 |
| UTF-16 Encoding | 0xD835 0xDFC9 |
| UTF-32 Encoding | 0x0001D7C9 |
| C/C++/Java Escape | \ud835\udfc9 |
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 | "π" U+03C0 Greek Small Letter Pi |
| NFKC Simple Casefold | "π" U+03C0 Greek Small Letter Pi |
| 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 |