ToolPythonBeginner Eigenvalues with numpy.linalg: normal modes of coupled oscillators print("equal up to sign: ", np.isclose(abs(V[:, 0] @ textbook), 1))
ToolPythonBeginner Minimization with scipy.optimize.minimize: the shape of a seven-atom cluster lost = np.isclose(E_raw, -12.303, atol=1e-3)