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SG::Perm2Sign -- returns the signature of a permutation

Call(s)


SG::Perm2Sign(perm)

Parameters

perm- any list denoting a permutation

Introduction

The SG::Perm2Sign function calculates the signature of a permutation. This value is equal to (-1)^(the length of perm).

Example 1

>> muEC::SG::Perm2Sign( [1,4,2,3] );
                                     1

Related Functions

Perm2Length, SgTranspo

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MuPAD Combinat, an open source algebraic combinatorics package