text: #include "../Libraries/Matrix.cpp"
  #include <math.h>
  
  int main(){
      Math::Matrix I{3, 3};
      Math::Matrix w{3, 1};
      w[1] = w[2] = w[3] = 1/sqrt(3);
      I[1][1] = I[2][2] = I [3][3] = 1;
      std::cout << I << std::endl;
      std::cout << w << std::endl;
      Math::Matrix J {Math::Matrix::J(w)};
      Math::Matrix R{ I + J * J * 2};
      std::cout << R << std::endl;
      return 0;
  }