{"coeffs": [-1.666732896688928e-07, 0.29140479312330514, 1.9070294555102092, 0.15451476527315966], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [5.71952174316645e-07, 136.42937886367798, 72.80211311993654, 0.012517619592690498], "covariance": [[3.271292897055378e-13, -5.8169475499547416e-05, -3.104875513473497e-05, -6.139569308422822e-09], [-5.816947549935065e-05, 18612.975417128986, 9932.34635126752, 1.6463125196552209], [-3.104875513471984e-05, 9932.346351267526, 5300.147674728036, 0.8786055317826338], [-6.139569308400086e-09, 1.646312519655979, 0.8786055317829853, 0.000156690800267309]]}