| HTML Entity (dec) | ϑ |
| HTML Entity (hex) | ϑ |
| UTF-8 (hex) | 0xcf91 / 0xcf 0x91 (2 bytes) |
| UTF-8 (dec) | 207, 145 (2 bytes) |
| UTF-16-BE (hex) | 0x3d1 / 0x03 0xd1 (2 bytes) |
| UTF-16-BE (dec) | 3, 209 (2 bytes) |
| UTF-32-BE (hex) | 0x3d1 / 0x00 0x00 0x03 0xd1 (4 bytes) |
| UTF-32-BE (dec) | 0, 0, 3, 209 (4 bytes) |
| C/C++/Java source code | "\u03d1" |
| Python source code | "\u03d1" |