message: maximized the grid size
diff: @@ -52,7 +52,7 @@ void derivatives_soap_gto(
  }
  // Central finite difference with error O(h^2)
  - double h = 0.0001;
  + double h = 0.00000005;
  vector<double> coefficients = {-1.0/2.0, 1.0/2.0};
  vector<double> displacement = {-1.0, 1.0};
  