public static void TranslationMatricesCanInverse() { var x = Var("𝓍"); var y = Var("𝓎"); var m = Matrix3x2.Translate(x, y); var im = m.Invert(); Assert.NotEqual(Matrix3x2.Identity, m); Assert.NotEqual(Matrix3x2.Identity, im); var a = m * im; var b = im * m; Assert.Equal(a, b); Assert.Equal(Matrix3x2.Identity, a); Assert.Equal(Matrix3x2.Identity, b); }