public void Inverse()
{
Matrix3x3d m = new Matrix3x3d((double)1, (double)0, (double)0,
(double)2, (double)2, (double)3,
(double)0, (double)5, (double)3);
m = m.Inverse;
Assert.IsTrue(
Matrix3x3d.NearEqual(m, new Matrix3x3d(
(double)1, (double)0, (double)0,
(double)2.0 / (double)3.0, -1.0 / (double)3.0, 1.0 / (double)3.0,
(double)-10.0 / (double)9.0, (double)5.0 / (double)9.0, (double)-2.0 / (double)9.0)));
}
public void Multiplication2()
{
Matrix3x3d m = new Matrix3x3d((double)1, (double)0, (double)0,
(double)2, (double)2, (double)3,
(double)0, (double)5, (double)3);
Matrix3x3d m_inv = new Matrix3x3d(
(double)1, (double)0, (double)0,
(double)2.0 / (double)3.0, -1.0 / (double)3.0, 1.0 / (double)3.0,
(double)-10.0 / (double)9.0, (double)5.0 / (double)9.0, (double)-2.0 / (double)9.0);
Matrix3x3d r = m * m_inv;
Assert.IsTrue(Matrix3x3d.NearEqual(r, Matrix3x3d.Identity));
}