U+1D7C0 "𝟀" Mathematical Sans-Serif Bold Italic Small Chi Unicode Character
Unicode Version 17.0
𝟀
U+1D7C0 "𝟀" Mathematical Sans-Serif Bold Italic Small Chi is a variant of the Greek letter chi, specifically designed for use in mathematical and scientific notation. It belongs to the Mathematical Alphanumeric Symbols block and combines a sans-serif typeface with bold weight and italic slant, distinguishing it from standard Greek letters. This character is typically employed in complex formulas, such as in calculus, statistics, or physics, where a distinct, stylized representation of the lowercase chi is needed to avoid confusion with other symbols like the Latin letter x.
General Properties
| Code Point | U+1D7C0 |
| Version Added | 3.1 |
| Name | Mathematical Sans-Serif Bold Italic Small Chi |
| Block | Mathematical Alphanumeric Symbols |
| General Category | Lowercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Font |
| Decomposition Mapping | "χ" U+03C7 Greek Small Letter Chi |
Encodings
| HTML Decimal Encoding | 𝟀 |
| HTML Hex Encoding | 𝟀 |
| UTF-8 Encoding | 0xF0 0x9D 0x9F 0x80 |
| UTF-16 Encoding | 0xD835 0xDFC0 |
| UTF-32 Encoding | 0x0001D7C0 |
| C/C++/Java Escape | \ud835\udfc0 |
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 | "χ" U+03C7 Greek Small Letter Chi |
| NFKC Simple Casefold | "χ" U+03C7 Greek Small Letter Chi |
| 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 |