public static Matrix3D MatMul(Matrix3D m1, Vector v)
{
Matrix3D m2 = VectToMat(v);
return(MatMul(m1, m2));
}
public static Vector MatToVec(Matrix3D m)
{
return(new Vector(m.Matrix[0, 0],
m.Matrix[1, 0],
m.Matrix.GetLength(0) > 2 ? m.Matrix[2, 0] : 0));
}