/**
* division of rational values
* <p>
* definition: `(n1 / d1) / (n2 / d2) = (n1 * d2) / (d1 * n2)`
* <p>
* @param that
* the value to divide this by
* @return the ratio of this to that
* @throws InvalidOperationException
* if that is null or if the numerator of that is 0
*/
public RationalBase Div(RationalBase that)
{
if (that == null || that.Numerator == 0)
{
throw new InvalidOperationException();
}
return(Construct(this.Numerator * that.Denominator, this.Denominator * that.Numerator));
}
/**
* addition of rational values
* <p>
* definition: `(n1 / d1) + (n2 / d2) = ((n1 * d2) + (n2 * d1)) / (d1 * d2)`
*
* @param that
* the value to add to this
* @return the sum of this and that
* @throws InvalidOperationException
* if that is null
*/
public RationalBase Add(RationalBase that)
{
if (that == null)
{
throw new InvalidOperationException();
}
return(Construct((this.Numerator * that.Denominator) + (that.Numerator * this.Denominator), (this.Denominator * that.Denominator)));
}
/**
* subtraction of rational values
* <p>
* definition: `(n1 / d1) - (n2 / d2) = ((n1 * d2) - (n2 * d1)) / (d1 * d2)`
*
* @param that
* the value to subtract from this
* @return the difference between this and that
* @throws InvalidOperationException
* if that is null
*/
public RationalBase Sub(RationalBase that)
{
if (that == null)
{
throw new InvalidOperationException();
}
return(Construct(((Numerator * that.Denominator) - (that.Numerator * Denominator)), (Denominator * that.Denominator)));
}
/**
* subtraction of rational values
* <p>
* definition: `(n1 / d1) - (n2 / d2) = ((n1 * d2) - (n2 * d1)) / (d1 * d2)`
*
* @param that
* the value to subtract from this
* @return the difference between this and that
* @throws InvalidOperationException
* if that is null
*/
public RationalBase Sub(RationalBase that)
{
throw new NotImplementedException();
}