class Vector3f implements Savable, Cloneable, java.io.Serializable {

    public boolean isUnitVector() {
        float len = length();
        return 0.99f < len && len < 1.01f;
    }

    public  Vector3f();
    public  Vector3f(float x, float y, float z);
    public  Vector3f(Vector3f copy);

}