nwangecon.github.io/M4Econ/"><span style=' font-weight: bold;'>Matlab Examples</span></a><span style=' font-weight: bold;'>, or </span><a href = "https://fanwangecon.github.io/MEconTools/"><span style=' font-weight: bold;'>MEconTools</span></a><span style=' font-weight: bold;'> Repositories</span></div><div  class = 'S1'><span>When you read your first economic papers, perhaps you are confused about function notation. Economic models include potentially a lot of variables, and different notations are used ba