public class DecimalExtension
{
	/**
	 * The binary <code>times</code> operator. This is the equivalent to the java <code>*</code> operator.
	 * 
	 * @param a
	 *            an double. May not be <code>null</code>.
	 * @param b
	 *            a number. May not be <code>null</code>.
	 * @return <code>a*b</code>
	 * @throws NullPointerException
	 *             if {@code a} or {@code b} is <code>null</code>.
	 */
	public static double operator_multiply(
			Double a,
			Number b )
	{
		return a * b.doubleValue();
	}
}