public void Cross() { var vector1 = new Vector3(2.0f, 3.0f, 4.0f); var vector2 = new Vector3(5.0f, 6.0f, 7.0f); var cross = vector1.Cross(vector2); Assert.AreEqual(-3.0f, cross.X); Assert.AreEqual(6.0f, cross.Y); Assert.AreEqual(-3.0f, cross.Z); }