public static Matrix3 operator -(Matrix3 M1, Matrix3 M2)
{// An overloaded operator * to return the difference of two matrix
return(new Matrix3(M1.Row(0) - M2.Row(0), M1.Row(1) - M2.Row(1), M1.Row(2) - M2.Row(2)));
}
/// <summary>
/// simply adds each row from m1 to each row from m2
/// using the Row(i)method below returning the added matrix
/// </summary>
/// <param name="M1"></param>
/// <param name="M2"></param>
/// <returns></returns>
public static Matrix3 operator +(Matrix3 M1, Matrix3 M2)
{// An overloaded operator + to return the sum of two matrix
return(new Matrix3(M1.Row(0) + M2.Row(0), M1.Row(1) + M2.Row(1), M1.Row(2) + M2.Row(2)));
}