public override Numeric divReversed(Numeric x)
{
if (! (x is RatNum))
throw new ArgumentException ();
return RatNum.divide ((RatNum)x, this);
}
public override int compareReversed(Numeric x)
{
return RatNum.compare ((RatNum) x, this);
}
public override Numeric addReversed(Numeric x, int k)
{
if (! (x is RatNum))
throw new ArgumentException ();
return RatNum.add ((RatNum)x, this, k);
}
public virtual Numeric divReversed(Numeric x)
{
throw new ArgumentException ();
}
public virtual int compareReversed(Numeric x)
{
throw new ArgumentException ();
}
/** Calculate x+k&this. */
public virtual Numeric addReversed(Numeric x, int k)
{
throw new ArgumentException ();
}