{"coeffs": [1.1457744457339433e-06, 0.0131840214138959, 1.2891845798608736, 0.0927371189859232], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [8.772381653606787e-07, 85.30137175476602, 607.0623906390241, 0.19742818518024371], "covariance": [[7.695467987653695e-13, -3.718824229193776e-05, -0.00026484535278447485, -1.07811201193985e-07], [-3.7188242290338885e-05, 7276.324023244794, 51783.24017656486, 16.06991266835833], [-0.0002648453527730922, 51783.24017656651, 368524.7461283671, 114.39112700108195], [-1.078112011917198e-07, 16.06991266857423, 114.39112700261391, 0.038977888303564606]]}