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Macaulay2Doc :: flattenRing(..., CoefficientRing => ...)

flattenRing(..., CoefficientRing => ...) -- optionally specify the desired coefficient ring of the flattened ring

Description

Use this option to change the default behavior of flattenRing, by setting the option to the desired coefficientRing of the output ring.

i1 : k = toField (QQ[x]/(x^2+x+1));
i2 : R = k[y]/(x-y+2);
i3 : (S, f) = flattenRing(R); describe S

         k[y]
o4 = -----------
     - y + x + 2
i5 : (S2, f2) = flattenRing(R, CoefficientRing => QQ); describe S2

              QQ[y, x]
o6 = -------------------------
       2
     (x  + x + 1, - y + x + 2)

See flattenRing documentation for more examples and details.

Further information

See also