{"coeffs": [-1.1420051667003052e-07, 0.2811262701564018, 1.3691964396637224, 0.07576306933887125], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [3.008746880843359e-08, 312.9472650746267, 84.56166168281672, 0.0028081575434156184], "covariance": [[9.05255779298464e-16, -4.202253142201008e-06, -1.1356051891081454e-06, -4.76947242222118e-11], [-4.202253140303977e-06, 97935.99071768868, 26463.340628026475, 0.8397195856375272], [-1.1356051886087352e-06, 26463.340628027654, 7150.674626559153, 0.2269079348535567], [-4.769472421095013e-11, 0.8397195857553967, 0.2269079348853419, 7.885748788642041e-06]]}