{"coeffs": [-4.977592209776998e-07, 0.8898800245548387, 2.1196714572947326, 0.1571169833578213], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [8.373203138389922e-07, 2230.04346490912, 395.3617221602743, 0.02025437545329747], "covariance": [[7.011053079674284e-13, -0.001404839315302985, -0.0002490840175135938, -1.4635935956203216e-08], [-0.0014048393154619276, 4973093.855383872, 881673.8174267861, 43.566249591148775], [-0.00024908401754105243, 881673.8174267675, 156310.89134953794, 7.7240806207355055], [-1.4635935956911966e-08, 43.566249589223936, 7.724080620393444, 0.00041023972500313913]]}