longCallbutterfly       Calculates per share Profit and Loss (PnL) at
                        expiration for Long Call Butterfly Option
                        Strategy and draws its Bar Plot displaying PnL
                        in the Plots tab.
longPutButterfly        Calculates per share Profit and Loss (PnL) at
                        expiration for Long Put Butterfly Option
                        Strategy and draws its Bar Plot displaying PnL
                        in the Plots tab.
shortCallbutterfly      Calculates per share Profit and Loss (PnL) at
                        expiration for Short Call Butterfly Option
                        Strategy and draws its Bar Plot displaying PnL
                        in the Plots tab.
shortPutButterfly       Calculates per share Profit and Loss (PnL) at
                        expiration for Short Put Butterfly Option
                        Strategy and draws its Bar Plot displaying PnL
                        in the Plots tab.
