Or you could change the current directory to that where the program is installed. The option to quit is available only when the menu bar is visible. The source-code language of G4FGQ programs is Turbo Pascal. Programs can be run only as the author intended. Integrity and authenticity are preserved.
Subject matters are technical and are necessarily dealt with quantitatively.
At the heart of each program is a set of mathematical functions and procedures. Properties of the 'parts' used to construct the model are stored within the program. Other procedures accept from the experimenter the details specifying the model. The program then proceeds with its anaysis and finally its conclusions are displayed. Advice or warnings may be given to the experimenter as appropriate.