{"coeffs": [-1.4947568295747844e-09, 0.08528538350655152, 1.2662422079808655, 0.06993300914999791], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [8.579708116924106e-07, 7663.3791832985435, 6243.755259241458, 0.2339115576924542], "covariance": [[7.361139137161338e-13, -0.002657001734076702, -0.002165043859591608, -1.0352657515087502e-07], [-0.0026570017334383756, 58727380.507013455, 47848263.799963504, 1713.6457255182543], [-0.0021650438591770656, 47848263.79996456, 38984479.737305366, 1396.2429184416535], [-1.0352657513962128e-07, 1713.6457256272968, 1396.2429185290698, 0.05471461682211033]]}