Signature

Signature(permutation-list)

determine if the permutation-list has odd (-1) or even (1) parity. Returns 0 if two elements in the permutation-list are equal.

See

• Wikipedia - Permutation

Examples

>> Signature({1,2,3,4})
1

>> Signature({1,4,3,2})
-1

>> Signature({1,2,3,2})
0

Implementation status

• ✅ - full supported

Github

• Implementation of Signature