{"coeffs": [-6.927995921326011e-06, 0.00011702754027297854, 0.592234125439545, 0.23685806843008034], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [1.8857245288920538e-06, 1.6828200235945018e-05, 0.057333688065171695, 0.02545571013144646], "covariance": [[3.5559569988651587e-12, -2.8005898973982885e-11, -9.320252554726465e-08, -4.6018394121680375e-08], [-2.8005898973982895e-11, 2.8318832318106e-10, 9.6325703039635e-07, 4.1658278316738517e-07], [-9.320252554726473e-08, 9.6325703039635e-07, 0.003287151787154411, 0.0014083024322886178], [-4.601839412168036e-08, 4.1658278316738517e-07, 0.0014083024322886176, 0.000647993178296226]]}