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Working with
                                                                            Functions














                    Function types       UDF definition        Program              ➢ Function              Scope of             Life time of
                    Built in             and call of           execution and           parameters           variables of a       variables of a
                    function             function              control flow            --positional         function             function
                    ➢ Functions in       ➢ With                                        --default
                                                                                                            ➢ Global             ➢ Built in
                      modules              parameter                                   --keyword
                                                                                                            ➢ Local              ➢ Global
                    ➢ User defined       ➢ Without                                  ➢ Function
                                                                                                                                 ➢ Enclosed
                      function             parameter                                   argument
                                                                                                                                 ➢ Local
                                         ➢ Returning
                                           value
                                         ➢ No return
                                           value
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