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Macaulay2 website
Cremona
::
coefficientRing(RationalMap)
coefficientRing(RationalMap)  coefficient ring of a rational map
Synopsis
Function:
coefficientRing
Usage:
coefficientRing phi
Inputs:
phi
,
a
rational map
Outputs:
a
ring
, the coefficient ring of
phi
See also
RationalMap ** Ring
 change the coefficient ring of a rational map
Ways to use this method:
coefficientRing(RationalMap)
 coefficient ring of a rational map