The following are commands and functions controlling rings:
* Characteristic -- the characteristic of a ring
* Clear -- clear the working memory or a ring-bound memory
* CurrentRing -- the current ring
* Deg -- the degree of a polynomial or vector
* Delete -- delete variables from the working memory
* Destroy -- delete rings
* Dim -- the dimension of a ring or quotient object
* Hilbert -- the Hilbert function
* HilbertPoly -- the Hilbert polynomial
* HVector -- the h-vector of a ring or quotient object
* Image -- ring homomorphism
* Indet -- individual indeterminates
* IndetInd -- the index of an indeterminate
* IndetIndex -- index of an indeterminate
* Indets -- list of current indeterminates
* IndetName -- the name of an indeterminate
* IsPosTo, IsToPos -- checks the module term-ordering of a ring
* MDeg -- multi-degree of an polynomial
* Multiplicity -- the multiplicity (degree) of a ring or quotient object
* NumIndets -- number of indeterminates
* Ord -- matrix defining a term-ordering
* Poincare, HilbertSeries -- the Poincare series
* QZP, ZPQ -- change field for polynomials and ideals
* Ring -- returns the ring with a given name
* RingEnv -- name of the current ring
* RingEnvs -- names of all defined rings
* TypeOfCoeffs -- type of the coefficients of the current ring
* Use -- command for making a ring active
* Using -- perform commands in non-active ring
* WeightsList -- first row of the weights matrix
* WeightsMatrix -- matrix of generalized weights for indeterminates
Details can be found by looking up each item by name. Online, try
'?ItemName' or 'H.Syntax("ItemName")'.
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