U+1D789 "𝞉" Mathematical Sans-Serif Bold Partial Differential Unicode Character
Unicode Version 17.0
𝞉
U+1D789 "𝞉" Mathematical Sans-Serif Bold Partial Differential is a typographic variant of the standard partial derivative symbol ∂, designed specifically for use in mathematical notation where a sans-serif bold typeface is preferred to distinguish variables or operators in dense equations, particularly in fields such as physics or engineering. It belongs to the Mathematical Alphanumeric Symbols block and is encoded separately from its regular counterpart to allow for precise formatting in digital text, ensuring that documents and publications can maintain consistent styling when mixing mathematical expressions with surrounding sans-serif bold text.
General Properties
| Code Point | U+1D789 |
| Version Added | 3.1 |
| Name | Mathematical Sans-Serif Bold Partial Differential |
| Block | Mathematical Alphanumeric Symbols |
| General Category | Math Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Other Neutral |
| Mirrored | Yes |
| Decomposition Type | Font |
| Decomposition Mapping | "∂" U+2202 Partial Differential |
Encodings
| HTML Decimal Encoding | 𝞉 |
| HTML Hex Encoding | 𝞉 |
| UTF-8 Encoding | 0xF0 0x9D 0x9E 0x89 |
| UTF-16 Encoding | 0xD835 0xDF89 |
| UTF-32 Encoding | 0x0001D789 |
| C/C++/Java Escape | \ud835\udf89 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "∂" U+2202 Partial Differential |
| NFKC Simple Casefold | "∂" U+2202 Partial Differential |
| Script | Common |
| Script Extensions | Common |
| Indic Syllabic Category | Other |
| ID Compat Math Start | Yes |
| ID Compat Math Continue | Yes |
| Math | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Other |
| Sentence Break | Other |