{"coeffs": [-1.4326540091515143e-06, 0.22428773587787565, 2.1176865468339643, 0.17995617449094867], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [5.538550220887162e-07, 106.38343357726372, 86.21683264416545, 0.015726067579725597], "covariance": [[3.0675538549289235e-13, -4.732585371003726e-05, -3.836321441155417e-05, -7.851248022204069e-09], [-4.7325853698559935e-05, 11317.434939688083, 9172.042045026552, 1.62072818220032], [-3.836321440236608e-05, 9172.042045027905, 7433.342231192032, 1.3136202239416828], [-7.851248021240668e-09, 1.6207281823635558, 1.3136202240736334, 0.00024730920152209645]]}