U+1D5D1 "𝗑" Mathematical Sans-Serif Small X Unicode Character
Unicode Version 17.0
𝗑
U+1D5D1 "𝗑" Mathematical Sans-Serif Small X is a styled version of the lowercase letter x, designed for use in mathematical and scientific notation where a sans serif typeface is preferred. It belongs to the "Mathematical Alphanumeric Symbols" block, which provides distinct glyphs for variables, constants, and operators to avoid ambiguity with regular text. This character is typically rendered in a bold, clean sans serif style, making it suitable for equations, computer science contexts, or formal mathematical documents. Its inclusion in Unicode ensures consistent representation across different platforms and software.
General Properties
| Code Point | U+1D5D1 |
| Version Added | 3.1 |
| Name | Mathematical Sans-Serif Small X |
| Block | Mathematical Alphanumeric Symbols |
| General Category | Lowercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Font |
| Decomposition Mapping | "x" U+0078 Latin Small Letter X |
Encodings
| HTML Decimal Encoding | 𝗑 |
| HTML Hex Encoding | 𝗑 |
| UTF-8 Encoding | 0xF0 0x9D 0x97 0x91 |
| UTF-16 Encoding | 0xD835 0xDDD1 |
| UTF-32 Encoding | 0x0001D5D1 |
| C/C++/Java Escape | \ud835\uddd1 |
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 | "x" U+0078 Latin Small Letter X |
| NFKC Simple Casefold | "x" U+0078 Latin Small Letter X |
| 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 |