U+1D457 "𝑗" Mathematical Italic Small J Unicode Character
Unicode Version 17.0
U+1D457 "𝑗" Mathematical Italic Small J is a specialized glyph from the Mathematical Alphanumeric Symbols block, designed to represent the variable "j" in a distinct italic style for use in mathematical and scientific notation. Unlike the regular italic "j" found in standard text fonts, this character ensures that the symbol maintains a consistent, unambiguous appearance across different platforms and documents, preventing confusion with other characters like the dotless "ȷ" or the letter "i". It is commonly employed in fields such as physics, engineering, and computer science to denote the imaginary unit, a current density vector, or an index variable in complex formulas, particularly when precise typographic formatting is required for readability and professional typesetting.
General Properties
Encodings
| HTML Decimal Encoding |
𝑗 |
| HTML Hex Encoding |
𝑗 |
| UTF-8 Encoding |
0xF0 0x9D 0x91 0x97 |
| UTF-16 Encoding |
0xD835 0xDC57 |
| UTF-32 Encoding |
0x0001D457 |
| C/C++/Java Escape |
\ud835\udc57 |
Unicode Properties