Singular Manual: parstr

  | ### 5.1.116 parstr `Syntax:` `parstr (` ring_name `)` `parstr (` int_expression `)` `parstr (` ring_name`,` int_expression `)` `Type:` string `Purpose:` returns the list of parameters of the ring as a string or the name of the n-th parameter where n is given by the int_expression. If the ring_name is omitted, the basering is used, thus `parstr(n)` is equivalent to `parstr(basering,n)`. `Example:`
        ring r=(7,a,b,c),(x,y),wp(2,3);
        parstr(r);
      ==> a,b,c
        parstr(2);
      ==> b
        parstr(r,3);
      ==> c
See charstr; npars; ordstr; ring; varstr.

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