@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		DoublePair other = (DoublePair) obj;
		if (Double.doubleToLongBits(v1) != Double.doubleToLongBits(other.v1))
			return false;
		if (Double.doubleToLongBits(v2) != Double.doubleToLongBits(other.v2))
			return false;
		return true;
	}