(f, num, den, cancel=True, kill=False, ring=None)
return f.__class__.new((num, den), dom, lev, ring=ring)
Create a DMF out of the given representation.
Create a DMF out of the given representation.
Create a DMF out of the given representation .
def per(f, num, den, cancel=True, kill=False, ring=None):
        """Create a DMF out of the given representation. """
        lev, dom = f.lev, f.dom

        if kill:
            if not lev:
                return num/den
            else:
                lev -= 1

        if cancel:
            num, den = dmp_cancel(num, den, lev, dom)

        if ring is None:
            ring = f.ring

        return f.__class__.new((num, den), dom, lev, ring=ring)
def per ( f , num , den , cancel = True , kill = False , ring = None ) : lev , dom = f . lev , f . dom if kill : if not lev : return num / den else : lev -= 1 if cancel : num , den = dmp_cancel ( num , den , lev , dom ) if ring is None : ring = f . ring return f . __class__ . new ( ( num , den ) , dom , lev , ring = ring )