ApCoCoA-1:NCo.BDeg

This article is about a function from ApCoCoA-1.

NCo.BDeg

The standard degree of a polynomial in a free monoid ring over the binary field F_{2}={0,1}.

Syntax

NCo.BDeg(F:LIST):INT

Description

Please set ring environment alphabet (or set of indeterminates) X via the function NCo.SetX, before calling this function.

• @param F: a polynomial in the free monoid ring F_{2}<X>. Each polynomial is represented as a LIST of words (or terms) in <X>. Each word is represented as a STRING. For example, xy^2x is represented as "xyyx", and the identity is represented as the empty string "". Thus, the polynomial F=xy-y+1 is represented as F:=["xy", "y", ""]. The zero polynomial 0 is represented as the empty LIST [].

• @return: a INT which represents the standard degree of F. If F=0, the function returns 0.

Example

NCo.SetX("xX");
NCo.SetOrdering("LLEX");
F1:=["xX",""];
NCo.BDeg(F1);
2
-------------------------------
NCo.BDeg([]);
0
-------------------------------

See also

NCo.SetX

Introduction to CoCoAServer