{"coeffs": [-8.966741008482781e-07, 0.8256316191625332, 1.5445376351785636, 0.08574743831438386], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [1.1789883293511644e-06, 66867.70652369627, 6973.313981259526, 0.09503528040013771], "covariance": [[1.3900134807462495e-12, -0.03856857235555229, -0.0040223043673347555, -6.87019589099628e-08], [-0.03856857244201962, 4471290175.739172, 466289512.346112, 6067.822405271826], [-0.004022304376157939, 466289512.3460663, 48627107.88122959, 632.7928850549948], [-6.870195898891231e-08, 6067.82240104937, 632.7928846147639, 0.0090317045207328]]}