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NCo.LW

The leading word (or term) of a non-zero polynomial in a free monoid ring.
Syntax
          
NCo.LW(F:LIST):STRING
NCo.LT(F:LIST):STRING

          

Description
Please note: The function(s) explained on this page is/are using the ApCoCoAServer. You will have to start the ApCoCoAServer in order to use it/them.

Please set ring environment coefficient field K, alphabet (or set of indeterminates) X and ordering via the functions NCo.SetFp, NCo.SetX and NCo.SetOrdering, respectively, before using this function. The default coefficient field is Q, and the default ordering is the length-lexicographic ordering ("LLEX"). For more information, please check the relevant functions.

Example
NCo.SetX("abc");
F:=[[1,"ab"],[1,"aa"],[1,"bb"],[1,"bab"]];
NCo.LW(F); -- LLEX ordering (default ordering)
bab
-------------------------------
NCo.SetOrdering("ELIM");
NCo.LW(F); 
aa
-------------------------------
NCo.LW([]);


See Also