{"coeffs": [-1.2597588815390598e-06, 8.19900345266588e-05, 0.41939824498618894, 0.12683495827518182], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [2.2997252140944302e-07, 1.2370987564084926e-06, 0.004048894011946087, 0.0025456973512380885], "covariance": [[5.2887360603416725e-14, -1.7900767311371216e-13, -4.4300371675994925e-10, -4.693233700975911e-10], [-1.7900767311371216e-13, 1.5304133331074388e-12, 4.856034812174815e-09, 2.8767442090331355e-09], [-4.430037167599496e-10, 4.856034812174816e-09, 1.6393542719972882e-05, 8.710395749963117e-06], [-4.69323370097591e-10, 2.876744209033136e-09, 8.710395749963117e-06, 6.480575004100619e-06]]}