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SFA::SfAVars -- specifies valid variables in alphabets

Call(s)


SFA::SfAVars(vset)

Parameters

vset- a set of variables

Introduction

The SFA::SfAVars function specifies which variables are considered for the SfAExpand function.

vset gives the set of valid variables for SFA, for instance:

With no argument, SFA::SfAVars returns the current set of valid variables.

Note that each call to SFA::SfAVars destroy the remember table of SfAExpand, if vset is specified.

Example 1

>> muEC::SFA::SfAVars( {{x}, u, v} );
                                {{x}, u, v}
>> tt := muEC::SFA::SfAExpand( m[3,2](x1+u+v) - q*s[2,2](x1+u+v) );
       2  3    3  2    2   3    3   2    2   3    3   2      2  2
      u  v  + u  v  + u  x1  + u  x1  + v  x1  + v  x1  - q u  v  -
      
            2   2      2   2           2        2         2
         q u  x1  - q v  x1  - q u v x1  - q u v  x1 - q u  v x1

Related Functions

SfAExpand

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MuPAD Combinat, an open source algebraic combinatorics package