4.20.3 ring related functions

charstr

description of the coefficient field of a ring (see charstr)

keepring

move ring to next upper level (see keepring)

npars

number of ring parameters (see npars)

nvars

number of ring variables (see nvars)

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)

ringlist

decomposition of a ring into a list of its components (see ringlist)

setring

setting of a new basering (see setring)

varstr

names of all ring variables or the name of the n-th ring variable (see varstr)