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Gens |
Syntax |
Gens(I:IDEAL):LIST Gens(M:MODULE):LIST |
Summary |
list of generators of an ideal |
Description |
This function returns a list of polynomials which generate the ideal I or the module M. The list is not necessarily minimal. Note that I.Gens and M.Gens will give the same lists of generators. The advantage of 'Gens' is that its argument can be any expression evaluating to an ideal or module. |
Example |
Use R ::= Q[x,y]; I := Ideal(y^2-x^3,xy); Gens(I); [-x^3 + y^2, xy] ------------------------------- I.Gens; [-x^3 + y^2, xy] ------------------------------- Gens(I^2); [x^6 - 2x^3y^2 + y^4, -x^4y + xy^3, x^2y^2] ------------------------------- |
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