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NCo.Multiply

Multiplication of two polynomials in a free monoid ring.
Syntax
          
NCo.Multiply(F1:LIST, F2:LIST):LIST

          

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.SetFp(3);
NCo.SetX("abc");
NCo.RingEnv();
Coefficient ring : Fp = Z/(3)
Alphabet : abc
Ordering : LLEX
-------------------------------
F1 := [[2,"a"],[1,""]];
F2 := [[2,"b"],[1,"ba"]];
NCo.Multiply(F1,F2); -- over F3
[[2, "aba"], [1, "ab"], [1, "ba"], [2, "b"]]
-------------------------------
NCo.Multiply(F2,F1);
[[2, "baa"], [2, "ba"], [2, "b"]]
-------------------------------
NCo.Multiply(F1,[]);
[ ]
-------------------------------
NCo.Multiply([],F1);
[ ]
-------------------------------
NCo.Multiply([],[]);
[ ]
-------------------------------
NCo.UnsetFp();
NCo.RingEnv();
Coefficient ring : Q
Alphabet : abc
Ordering : LLEX
-------------------------------
NCo.Multiply(F1,F2); -- over Q
[[2, "aba"], [4, "ab"], [1, "ba"], [2, "b"]]
-------------------------------
NCo.Multiply(F2,F1);
[[2, "baa"], [5, "ba"], [2, "b"]]
-------------------------------


See Also