{"coeffs": [1.053678265036854e-07, 1.2813388354486959, 1.846766541041191, 0.12445550009354939], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [5.834243720282953e-07, 3783.5979208033013, 368.9636431723907, 0.013102198239699473], "covariance": [[3.403839978766108e-13, -0.00143545007250327, -0.00013999143712748314, -5.9273502473035904e-09], [-0.0014354500714685605, 14315613.226307066, 1396010.0661363169, 47.51765443468132], [-0.00013999143703073558, 1396010.0661364421, 136134.16998304322, 4.633898616205813], [-5.927350245292002e-09, 47.51765444733343, 4.633898617434688, 0.00017166759871238395]]}