U+1D45C "𝑜" Mathematical Italic Small O Unicode Character
Unicode Version 17.0
𝑜
U+1D45C "𝑜" Mathematical Italic Small O is a typographic glyph used primarily in mathematical and scientific notation to represent the variable 'o' in an italic style that remains distinct from standard text italics. This character belongs to the Mathematical Alphanumeric Symbols block, which provides a set of letters and digits designed to convey specific semantic meaning in equations, such as representing constants, functions, or variables. By using this dedicated code point, authors can ensure mathematical expressions render consistently across different platforms and fonts without relying on style formatting that might be lost or misinterpreted.
General Properties
| Code Point | U+1D45C |
| Version Added | 3.1 |
| Name | Mathematical Italic Small O |
| Block | Mathematical Alphanumeric Symbols |
| General Category | Lowercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Font |
| Decomposition Mapping | "o" U+006F Latin Small Letter O |
Encodings
| HTML Decimal Encoding | 𝑜 |
| HTML Hex Encoding | 𝑜 |
| UTF-8 Encoding | 0xF0 0x9D 0x91 0x9C |
| UTF-16 Encoding | 0xD835 0xDC5C |
| UTF-32 Encoding | 0x0001D45C |
| C/C++/Java Escape | \ud835\udc5c |
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 | "o" U+006F Latin Small Letter O |
| NFKC Simple Casefold | "o" U+006F Latin Small Letter O |
| 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 |