| HTML Entity (dec) | Ῑ | 
| HTML Entity (hex) | Ῑ | 
| UTF-8 (hex) | 0xe1bf99 / 0xe1 0xbf 0x99 (3 bytes) | 
| UTF-8 (dec) | 225, 191, 153 (3 bytes) | 
| UTF-16-BE (hex) | 0x1fd9 / 0x1f 0xd9 (2 bytes) | 
| UTF-16-BE (dec) | 31, 217 (2 bytes) | 
| UTF-32-BE (hex) | 0x1fd9 / 0x00 0x00 0x1f 0xd9 (4 bytes) | 
| UTF-32-BE (dec) | 0, 0, 31, 217 (4 bytes) | 
| C/C++/Java source code | "\u1fd9" | 
| Python source code | "\u1fd9" |