modifyRing -- make a copy of a ring, with some features changed

modifyRing -- make a copy of a ring, with some features changed

modifyRing(R,options) -- yields a ring similar to R, with certain features changed.

Bug: doesn't work yet.

Ways to use modifyRing :

Optional arguments :

modifyRing(..., Adjust) -- adjust the multi-degree

modifyRing(..., Degrees) -- specify the degrees

modifyRing(..., Inverses) -- specify whether generators are invertible

modifyRing(..., MonomialOrder) -- monomial ordering

modifyRing(..., MonomialSize) -- specify maximum exponent size

modifyRing(..., NewMonomialOrder => ...)

modifyRing(..., Repair) -- repair the multi-degree

modifyRing(..., SkewCommutative) -- make a skewcommutative (alternating) ring

modifyRing(..., VariableBaseName) -- base name for variables

modifyRing(..., VariableOrder)

modifyRing(..., Variables) -- specify the variable names

modifyRing(..., Weights) -- specify monomial ordering by weights

modifyRing(..., WeylAlgebra) -- make a Weyl algebra