{"coeffs": [7.04536970657231e-07, 1.5278601871494755, 1.9174591966698615, 0.13264171279518308], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [9.46686927745606e-07, 4933.039609922389, 430.0597951686136, 0.016674556614560458], "covariance": [[8.962161391644143e-13, -0.0031729832308455396, -0.00027664159139115116, -1.2655185902876353e-08], [-0.0031729832322892194, 24334879.793063235, 2121501.992120021, 78.96234911694482], [-0.00027664159150899987, 2121501.9921198883, 184951.4274204699, 6.8841101768295285], [-1.2655185905468103e-08, 78.96234910333955, 6.88411017564767, 0.0002780408382921819]]}