question: calculates the 2d cross product between this and the given vector . concode_field_sep long serialVersionUID concode_elem_sep float x concode_elem_sep float y concode_elem_sep Vector2 Zero concode_elem_sep Vector2 X concode_elem_sep Vector2 Y concode_field_sep Vector2 sub concode_elem_sep Vector2 sub concode_elem_sep Vector2 rotate concode_elem_sep boolean hasSameDirection concode_elem_sep float dst concode_elem_sep float dst concode_elem_sep float dst concode_elem_sep Vector2 mul concode_elem_sep Vector2 lerp concode_elem_sep float dot concode_elem_sep float dot concode_elem_sep float dot concode_elem_sep boolean isPerpendicular concode_elem_sep boolean isPerpendicular concode_elem_sep float len2 concode_elem_sep float len2 concode_elem_sep Vector2 nor concode_elem_sep Vector2 limit2 concode_elem_sep float len concode_elem_sep float len concode_elem_sep int hashCode concode_elem_sep Vector2 limit concode_elem_sep float angle concode_elem_sep float angle concode_elem_sep boolean isZero concode_elem_sep boolean isZero concode_elem_sep Vector2 scl concode_elem_sep Vector2 scl concode_elem_sep Vector2 scl concode_elem_sep Vector2 mulAdd concode_elem_sep Vector2 mulAdd concode_elem_sep Vector2 clamp concode_elem_sep Vector2 add concode_elem_sep Vector2 add concode_elem_sep float angleRad concode_elem_sep float angleRad concode_elem_sep boolean isCollinearOpposite concode_elem_sep boolean isCollinearOpposite concode_elem_sep float dst2 concode_elem_sep float dst2 concode_elem_sep float dst2 concode_elem_sep Vector2 set concode_elem_sep Vector2 set concode_elem_sep boolean isCollinear concode_elem_sep boolean isCollinear concode_elem_sep Vector2 setAngle concode_elem_sep boolean isUnit concode_elem_sep boolean isUnit concode_elem_sep boolean epsilonEquals concode_elem_sep boolean epsilonEquals concode_elem_sep Vector2 interpolate concode_elem_sep Vector2 rotate90 concode_elem_sep Vector2 cpy concode_elem_sep Vector2 setLength concode_elem_sep Vector2 setAngleRad concode_elem_sep boolean isOnLine concode_elem_sep boolean isOnLine concode_elem_sep boolean equals concode_elem_sep Vector2 setToRandomDirection concode_elem_sep Vector2 setZero concode_elem_sep String toString concode_elem_sep Vector2 fromString concode_elem_sep Vector2 rotateRad concode_elem_sep Vector2 setLength2 concode_elem_sep boolean hasOppositeDirection
target: float function ( Vector2 arg0 ) { return this . x * arg0 . y - this . y * arg0 . x ; }