ApCoCoA-1:NCo.SetX
From ApCoCoAWiki
NCo.SetX
Set alphabet (set of indeterminates).
Syntax
NCo.SetX(X:STRING)
Description
@param X: a STRING which is the alphabet (set of indeterminates) of a free monoid ring. Every letter in X must have a unique occurreNCoe. The order of letters in X is important siNCoe it will induce an admissible ordering. For example, NCo.SetX("xyz"); NCo.SetOrdering("ELIM"); means the elimination ordering induced from x>y>z. In other words, "ELIM" first eliminates x and then y and finally z.
Example
NCo.RingEnv(); Coefficient ring : Q Ordering : LLEX ------------------------------- NCo.SetX(<quotes>xyz</quotes>); NCo.RingEnv(); Coefficient ring : Q Alphabet : xyz Ordering : LLEX -------------------------------
See also
