{"coeffs": [3.7259011863215955e-09, 0.2946252019348461, 1.7992198098656222, 0.14390045101724658], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [7.156868547212404e-07, 141.71525019596933, 69.73609061045937, 0.013474566414647884], "covariance": [[5.122076740207819e-13, -7.256084841383639e-05, -3.5717311735095335e-05, -8.031580441104698e-09], [-7.256084841680293e-05, 20083.212138106188, 9882.666598799608, 1.8369786005563673], [-3.571731173649709e-05, 9882.666598799378, 4863.1223336302, 0.9040625278616378], [-8.031580441269752e-09, 1.8369786005280635, 0.9040625278477699, 0.00018156394006275673]]}