### 4.18.3 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)

User manual for Singular version 4-0-3, 2016, generated by texi2html.