public void Inverse()
{
Matrix3x3f m = new Matrix3x3f((float)1, (float)0, (float)0,
(float)2, (float)2, (float)3,
(float)0, (float)5, (float)3);
m = m.Inverse;
Assert.IsTrue(
Matrix3x3f.NearEqual(m, new Matrix3x3f(
(float)1, (float)0, (float)0,
(float)2.0 / (float)3.0, -1.0f / (float)3.0, 1.0f / (float)3.0,
(float)-10.0 / (float)9.0, (float)5.0 / (float)9.0, (float)-2.0 / (float)9.0)));
}
public void Multiplication2()
{
Matrix3x3f m = new Matrix3x3f((float)1, (float)0, (float)0,
(float)2, (float)2, (float)3,
(float)0, (float)5, (float)3);
Matrix3x3f m_inv = new Matrix3x3f(
(float)1, (float)0, (float)0,
(float)2.0 / (float)3.0, -1.0f / (float)3.0, 1.0f / (float)3.0,
(float)-10.0 / (float)9.0, (float)5.0 / (float)9.0, (float)-2.0 / (float)9.0);
Matrix3x3f r = m * m_inv;
Assert.IsTrue(Matrix3x3f.NearEqual(r, Matrix3x3f.Identity));
}
/// <summary>
/// We solve the system of equations, defined as:
/// M * X = C.
/// </summary>
/// <param name="S">The system in matrix form.</param>
/// <param name="C">constants</param>
/// <returns></returns>
public static Vector3f SolveSystem(Matrix3x3f S, Vector3f C)
{
return(S.Inverse * C);
}
