{"coeffs": [1.3744593819417075e-07, 0.07028344401675846, 1.3779064529382674, 0.07184329078561817], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [4.5448336518852445e-07, 53021.48387625142, 53933.619239363274, 0.5537388112370744], "covariance": [[2.065551292330857e-13, -0.009846779985758763, -0.01001653306874511, -1.3150701565758144e-07], [-0.009846779973370917, 2811277752.439589, 2859640521.2610297, 28050.9034447829], [-0.010016533055055146, 2859640521.2611513, 2908835284.256616, 28533.763898286234], [-1.3150701557288765e-07, 28050.903455624415, 28533.763909356636, 0.3066266710702482]]}