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Macaulay2 website
Cremona
::
image(RationalMap,String)
image(RationalMap,String)  closure of the image of a rational map using the F4 algorithm (experimental)
Synopsis
Function:
image
Usage:
image(Phi,"F4")
image(Phi,"MGB")
Inputs:
Phi
,
a
rational map
a
string
, "F4" or "MGB"
Outputs:
the
ideal
defining the closure of the image of
Phi
; the calculation passes through
groebnerBasis
(...,Strategy=>"F4") or
groebnerBasis
(...,Strategy=>"MGB").
See also
image(RationalMap)
 closure of the image of a rational map
image(RationalMap,ZZ)
 closure of the image of a rational map
groebnerBasis
 Gröbner basis, as a matrix
Ways to use this method:
image(RationalMap,String)
 closure of the image of a rational map using the F4 algorithm (experimental)