{"coeffs": [-9.758100984356841e-07, 7.668445329384717e-05, 0.41954521102141484, 0.12287114586040705], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [1.978491719819529e-07, 1.0696173596192352e-06, 0.0036826830730443704, 0.002316479755576767], "covariance": [[3.914429485394438e-14, -1.2955641811103037e-13, -3.3119335459406595e-10, -3.610722095547068e-10], [-1.2955641811103037e-13, 1.1440812959988244e-12, 3.811701369329507e-09, 2.254167798358056e-09], [-3.311933545940657e-10, 3.811701369329507e-09, 1.3562154616487528e-05, 7.162352576851032e-06], [-3.610722095547068e-10, 2.2541677983580564e-09, 7.162352576851036e-06, 5.366078457996999e-06]]}