Singular Manual: qring

| ### 4.20.1 qring SINGULAR offers the opportunity to calculate in quotient rings (factor rings), i.e., rings modulo an ideal. The ideal has to be given as a standard basis. For a detailed description of the concept of rings and quotient rings see Rings and orderings. Beside the construction, an object describing a quotient ring is of type `ring`. See qring declaration.

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