public void InverseIdentityTest()
{
double4x4 M = double4x4.Identity;
double4x4 MI = M.Inverse();
Assert.AreEqual(double4x4.Identity, MI);
}
public void InverseBiggerTest()
{
double4x4 M = new double4x4(
2, 3, 4, 5,
2, 5, 9, 15,
3, 5, 7, 10,
4, 8, 13, 21
);
double4x4 MI = M.Inverse();
Assert.AreEqual(double4x4.Identity, M * MI);
Assert.AreEqual(double4x4.Identity, MI * M);
}
public void InverseSimpleTest()
{
double4x4 M = new double4x4(
0, 0, 1, 0,
0, 1, 0, 0,
0, 0, 0, 1,
1, 0, 0, 0
);
double4x4 MI = M.Inverse();
Assert.AreEqual(double4x4.Identity, M * MI);
Assert.AreEqual(double4x4.Identity, MI * M);
}