The Fung-Calc was written to be especially easy to use. For the most part, one should be able launch the program and begin to graph without even reading any documentation.
Launch the program by typing fung-calc. Click on the New icon and a “New Graph” dialog will be presented.
Select one of the many graphing options and click OK. Specifics about each graphing mode can be found in Chapter 4. A graph window will appear and you are ready to go.