5. Non-linear fitting

Parameters \(\{A,a,b,C\}\) appearing in the model function were obtained inside Maple and Mathematica by a (local) non-linear fitting minimizing the least-squares error (both worksheet and notebook can be found here and here). An update pdf version can be found here. All case data points are weighted equally. Case data from every country are available at Worldometer (www.worldometers.info),  Coronavirus (www.worldometers.info/coronavirus).