{"coeffs": [6.814036872487737e-07, 1.166195003187805, 1.0403722538268474, 0.03745357381519192], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [3.446100499842111e-07, 87985.06041954768, 2833.93747241972, 0.02518413865460005], "covariance": [[1.1875608655012047e-13, -0.0091598361466964, -0.00029503939770899717, -3.2424715536357458e-09], [-0.009159836191880218, 7741370857.031454, 249344159.66934857, 2154.3419246018443], [-0.0002950393991565183, 249344159.66932344, 8031201.597584671, 69.39023785980596], [-3.242471563524887e-09, 2154.341922346543, 69.39023778725799, 0.0006342408397741205]]}