# ⅉ U+2149 DOUBLE-STRUCK ITALIC SMALL J

Slanted blackboard bold lowercase j, used as the imaginary unit, common in engineering.

| | |
|---|---|
| Character | `ⅉ` |
| Codepoint | U+2149 |
| Name | DOUBLE-STRUCK ITALIC SMALL J |
| Block | [Letterlike Symbols](https://unicodekit.com/block/letterlike-symbols) |
| Script | Common |
| Category | Lowercase Letter (Ll) |
| Unicode version | 3.2 |
| HTML | `ⅉ` `ⅉ` |
| CSS | `\2149` |
| JavaScript | `\u2149` |
| UTF-8 | E2 85 89 |
| UTF-16 | 2149 |
| Decomposition | font U+006A |

## Notes

- sometimes used for the imaginary unit

## Related characters

- ⅈ [U+2148 DOUBLE-STRUCK ITALIC SMALL I](https://unicodekit.com/char/2148)
- ⅊ [U+214A PROPERTY LINE](https://unicodekit.com/char/214A)
- ⅇ [U+2147 DOUBLE-STRUCK ITALIC SMALL E](https://unicodekit.com/char/2147)
- ⅋ [U+214B TURNED AMPERSAND](https://unicodekit.com/char/214B)
- ⅆ [U+2146 DOUBLE-STRUCK ITALIC SMALL D](https://unicodekit.com/char/2146)
- ⅌ [U+214C PER SIGN](https://unicodekit.com/char/214C)
- ⅅ [U+2145 DOUBLE-STRUCK ITALIC CAPITAL D](https://unicodekit.com/char/2145)
- ⅍ [U+214D AKTIESELSKAB](https://unicodekit.com/char/214D)
- ⅄ [U+2144 TURNED SANS-SERIF CAPITAL Y](https://unicodekit.com/char/2144)
- ⅎ [U+214E TURNED SMALL F](https://unicodekit.com/char/214E)
- ⅃ [U+2143 REVERSED SANS-SERIF CAPITAL L](https://unicodekit.com/char/2143)
- ⅏ [U+214F SYMBOL FOR SAMARITAN SOURCE](https://unicodekit.com/char/214F)

Page: https://unicodekit.com/char/2149 · JSON: https://unicodekit.com/characters/2149