U+1D743 "𝝃" Mathematical Bold Italic Small Xi Unicode Character
Unicode Version 17.0
𝝃
U+1D743 "𝝃" Mathematical Bold Italic Small Xi is a stylized representation of the lowercase Greek letter xi, designed in a bold italic typeface for use in mathematical and scientific notation. It belongs to the Unicode block "Mathematical Alphanumeric Symbols," which provides distinct letter forms to avoid confusion with ordinary text and to denote specific variables, constants, or operators in equations. This character allows mathematicians and scientists to clearly distinguish the xi variable in bold italic script, often used in fields like physics and engineering to represent concepts such as phase space coordinates or damping ratios.
General Properties
| Code Point | U+1D743 |
| Version Added | 3.1 |
| Name | Mathematical Bold Italic Small Xi |
| Block | Mathematical Alphanumeric Symbols |
| General Category | Lowercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Font |
| Decomposition Mapping | "ξ" U+03BE Greek Small Letter Xi |
Encodings
| HTML Decimal Encoding | 𝝃 |
| HTML Hex Encoding | 𝝃 |
| UTF-8 Encoding | 0xF0 0x9D 0x9D 0x83 |
| UTF-16 Encoding | 0xD835 0xDF43 |
| UTF-32 Encoding | 0x0001D743 |
| C/C++/Java Escape | \ud835\udf43 |
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 | "ξ" U+03BE Greek Small Letter Xi |
| NFKC Simple Casefold | "ξ" U+03BE Greek Small Letter Xi |
| 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 |