U+1D49B "𝒛" Mathematical Bold Italic Small Z Unicode Character
Unicode Version 17.0
𝒛
U+1D49B "𝒛" Mathematical Bold Italic Small Z is part of the Mathematical Alphanumeric Symbols block, designed specifically for use in scientific and mathematical notation where a bold italic style is required to denote variables, vectors, or other specific quantities. It represents a lowercase letter "z" rendered in a bold italic typeface, distinguishing it from ordinary text for clarity in complex equations. This character is an example of Unicode's effort to encode semantic distinctions in mathematical writing, allowing it to be used consistently across digital platforms without relying on font-based formatting.
General Properties
| Code Point | U+1D49B |
| Version Added | 3.1 |
| Name | Mathematical Bold Italic Small Z |
| Block | Mathematical Alphanumeric Symbols |
| General Category | Lowercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Font |
| Decomposition Mapping | "z" U+007A Latin Small Letter Z |
Encodings
| HTML Decimal Encoding | 𝒛 |
| HTML Hex Encoding | 𝒛 |
| UTF-8 Encoding | 0xF0 0x9D 0x92 0x9B |
| UTF-16 Encoding | 0xD835 0xDC9B |
| UTF-32 Encoding | 0x0001D49B |
| C/C++/Java Escape | \ud835\udc9b |
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 | "z" U+007A Latin Small Letter Z |
| NFKC Simple Casefold | "z" U+007A Latin Small Letter Z |
| 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 |