{"coeffs": [-4.7410975124133763e-07, 4.513515700406768e-05, 0.4508053992244342, 0.12255376161873677], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [2.0232829008552246e-07, 1.5023594824989325e-06, 0.008677071580022058, 0.004682683575447146], "covariance": [[4.0936736968931326e-14, -1.8567409027177297e-13, -8.848548395032177e-10, -7.382445302344285e-10], [-1.8567409027177335e-13, 2.25708401465446e-12, 1.2794624611759333e-08, 6.451335470005405e-09], [-8.848548395032207e-10, 1.2794624611759338e-08, 7.529157120482649e-05, 3.5671116129058367e-05], [-7.38244530234429e-10, 6.451335470005399e-09, 3.5671116129058326e-05, 2.1927525467762464e-05]]}