CoefficientRing -- an optional argument

Functions with optional argument named CoefficientRing:

• flattenRing(...,CoefficientRing=>...) -- specify the coefficient ring of the flattened ring
• generators(...,CoefficientRing=>...) -- see generators(Ring) -- the list of generators of a ring
• Grassmannian(...,CoefficientRing=>...) -- see Grassmannian -- compute the ideal of the Grassmannian of linear subspaces of a vector space
• Schubert(...,CoefficientRing=>...) -- see Schubert -- compute the Plücker ideal of a Schubert variety