{"coeffs": [-6.257785816720396e-07, 4.93647099345104e-05, 0.4277474511263989, 0.11442638560884436], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [2.0254496207750652e-07, 1.1917600526158574e-06, 0.006085463250906016, 0.0037008071197898672], "covariance": [[4.1024461662978556e-14, -1.3845555244409957e-13, -5.19224903355985e-10, -5.644030072943029e-10], [-1.3845555244409942e-13, 1.4202920230109513e-12, 7.018923052305865e-09, 3.985245047164551e-09], [-5.192249033559839e-10, 7.018923052305864e-09, 3.703286297812761e-05, 1.8884360612355573e-05], [-5.644030072943025e-10, 3.9852450471645516e-09, 1.8884360612355583e-05, 1.3695973337887372e-05]]}