sgn

Translingual

Symbol

sgn

1. (mathematics) The signum function.

   sgn x

2. (mathematics, group theory) The sign or signature of a permutation.

   sgn(σ)

3. (international standards) ISO 639-2 & ISO 639-5 language code for sign languages.

See also

• Signum function on Wikipedia.Wikipedia
• Parity of a permutation on Wikipedia.Wikipedia