| HTML Entity (dec) | ǿ |
| HTML Entity (hex) | ǿ |
| UTF-8 (hex) | 0xc7bf / 0xc7 0xbf (2 bytes) |
| UTF-8 (dec) | 199, 191 (2 bytes) |
| UTF-16-BE (hex) | 0x1ff / 0x01 0xff (2 bytes) |
| UTF-16-BE (dec) | 1, 255 (2 bytes) |
| UTF-32-BE (hex) | 0x1ff / 0x00 0x00 0x01 0xff (4 bytes) |
| UTF-32-BE (dec) | 0, 0, 1, 255 (4 bytes) |
| C/C++/Java source code | "\u01ff" |
| Python source code | "\u01ff" |