{"coeffs": [-2.2032147453203617e-07, 2.9105586616988438e-05, 0.5950139753366125, 0.13648220078663248], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [4.7411101343625315e-08, 1.6170468045200696e-06, 0.01390519224034725, 0.003764874149536612], "covariance": [[2.24781253061551e-15, -5.0991990037635784e-14, -4.382860136772403e-10, -1.4366578908046996e-10], [-5.0991990037635803e-14, 2.614840368008568e-12, 2.243514649537272e-08, 5.7521290392252245e-09], [-4.3828601367724114e-10, 2.243514649537272e-08, 0.00019335437124101335, 4.996443623717021e-05], [-1.4366578908047012e-10, 5.752129039225226e-09, 4.996443623717021e-05, 1.4174277361849027e-05]]}