public void CanFindAdjoint()
{
Matrix2D actual = Matrix2D.Adjoint(new Matrix2D
{
M11 = -3,
M12 = 2,
M13 = -5,
M21 = -1,
M22 = 0,
M23 = -2,
M31 = 3,
M32 = -4,
M33 = 1
});
Matrix2D expected = new Matrix2D
{
M11 = -8,
M12 = 18,
M13 = -4,
M21 = -5,
M22 = 12,
M23 = -1,
M31 = 4,
M32 = -6,
M33 = 2
};
AssertMatricesAreEqual(expected, actual);
}
public void CanDetectNoInverse()
{
Matrix2D matrix = Matrix2D.Adjoint(new Matrix2D
{
M11 = 1,
M12 = 2,
M13 = 3,
M21 = 4,
M22 = 5,
M23 = 6,
M31 = 7,
M32 = 8,
M33 = 9
});
Assert.IsFalse(matrix.HasInverse);
}