public class RealScalar extends Scalar {
	private double _value;

	public RealScalar(double value)
	{
		_value = value; // should round it
	}
	public Scalar add(Scalar s) {
		RealScalar ans = new RealScalar(((RealScalar)s).getValue() + _value);
		return ans;
	}

	public Scalar mul(Scalar s) {
		RealScalar ans = new RealScalar(((RealScalar)s).getValue() * _value);
		return ans;
	}

	public Scalar neg() {
		RealScalar ans = new RealScalar(_value * -1);
		return ans;
	}

	public Scalar inv() {
		RealScalar ans = new RealScalar(1/_value);
		return ans;
	}


	public boolean equals(Scalar s) {
		boolean ans = (((RealScalar)s).getValue() == _value);
		return ans;
	}

	public double getValue()
	{
		return _value;
	}

	public void setValue(double value)
	{
		_value = value;
	}

	public String toString()
	{
		String ans = ""+_value;
		return ans;
	}

}