{"coeffs": [-7.592457576224248e-07, 0.1987094364999404, 1.8218212948469996, 0.14909269646071366], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [6.641124882778639e-07, 96.49914914377547, 72.97698629514743, 0.016262708424228254], "covariance": [[4.410453970866159e-13, -4.6825500026438725e-05, -3.542357354207566e-05, -9.131695306010509e-09], [-4.682550003052684e-05, 9312.085785472622, 7042.216255307282, 1.51125325767578], [-3.542357354525413e-05, 7042.216255306841, 5325.640528722135, 1.143032430092433], [-9.131695306424299e-09, 1.5112532576212843, 1.1430324300512107, 0.0002644756852914646]]}