public boolean contains(float pX, float pY) {
		// calculate the difference in the term position and the
		// given point
		float xDiff = x - pX;
		float yDiff = y - pY;

		// if the point is within the term node return true
		if ((xDiff * xDiff + yDiff * yDiff) < radius * radius) {
			return true;
		}
		// otherwise return false
		return false;
	}