| #### 7.2.7.3 ring related functions (plural) `charstr` description of the coefficient field of a ring (see charstr) `envelope` enveloping ring (see envelope) `npars` number of ring parameters (see npars) `nvars` number of ring variables (see nvars) `opposite` opposite ring (see opposite) `ordstr` monomial ordering of a ring (see ordstr) `parstr` names of all ring parameters or the name of the n-th ring parameter (see parstr) `qring` quotient ring (see qring (plural)) `ringlist` decomposes a ring into a list of its components (see ringlist (plural)) `setring` set a new basering (see setring) `varstr` names of all ring variables or the name of the n-th ring variable (see varstr)

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