| HTML Entity (dec) | ∉ |
| HTML Entity (hex) | ∉ |
| UTF-8 (hex) | 0xe28889 / 0xe2 0x88 0x89 (3 bytes) |
| UTF-8 (dec) | 226, 136, 137 (3 bytes) |
| UTF-16-BE (hex) | 0x2209 / 0x22 0x09 (2 bytes) |
| UTF-16-BE (dec) | 34, 9 (2 bytes) |
| UTF-32-BE (hex) | 0x2209 / 0x00 0x00 0x22 0x09 (4 bytes) |
| UTF-32-BE (dec) | 0, 0, 34, 9 (4 bytes) |
| C/C++/Java source code | "\u2209" |
| Python source code | "\u2209" |