{"coeffs": [-4.5591173658371656e-07, 0.23093960304470446, 1.8907906387581317, 0.15581439331143335], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [7.074698682799467e-07, 117.85516475560046, 80.10416360751184, 0.016431778440574817], "covariance": [[5.005136145240451e-13, -6.244361475423256e-05, -4.2454627527264226e-05, -1.000085935118723e-08], [-6.244361475018236e-05, 13889.839859569729, 9440.688470592722, 1.8673675768619722], [-4.245462752430146e-05, 9440.688470593132, 6416.677027259024, 1.26937257278154], [-1.0000859350831737e-08, 1.867367576912154, 1.2693725728157483, 0.0002700033427201393]]}