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TYP::IsBorder -- tests whether the argument is a border of a partition

Call(s)


TYP::IsBorder(expr)

Parameters

expr- any expression

Introduction

The TYP::IsBorder function tests whether expr is a border list, 0 denoting an horizontal segment of the border, 1 a vertical one. Extremity segments shall not be included (i.e. 1 on the left top, 0 on the right bottom).

Example 1

>> muEC::TYP::IsBorder( [0,1,0] );
                                   FALSE
>> muEC::TYP::IsBorder( [0,1,0,0,1,1] );
                                   TRUE
>> muEC::TYP::IsBorder( [a,b,a,a,b,b], alphabet=[a,b] );
                                   TRUE

Related Functions

IsPart, IsDiagonal

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MuPAD Combinat, an open source algebraic combinatorics package