{"coeffs": [-6.557947183974282e-07, 7.276808359202771e-05, 0.4573184666246653, 0.13695034472946252], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [4.4353769538426946e-08, 3.3939198239260317e-07, 0.0013099691146279153, 0.0006853905534655668], "covariance": [[1.96725687226789e-15, -1.0059537764009573e-14, -3.3664449044914853e-11, -2.508821190933263e-11], [-1.005953776400956e-14, 1.1518691771238106e-13, 4.38613529124011e-10, 2.1597983609172365e-10], [-3.3664449044914776e-11, 4.386135291240109e-10, 1.7160190812790442e-06, 8.049551953894957e-07], [-2.508821190933262e-11, 2.1597983609172375e-10, 8.049551953894962e-07, 4.69760210779836e-07]]}