When the program runs, the screen will be cleared and you will see the main options. Type the number beside the option to access that option. Pressing Escape will return you to this menu from any mode.
In the "test" mode, you must first give the result of the question and then the units for the result. You will be given marks for both parts.
In the "formulae" mode, you must remember to use lower case. E.g. To find formulae about power, you would enter 'power'. Enter 'stop' (lower case) to exit this mode.
The program may be expanded to include different areas of physics by using the 'Add Data' and 'Save Data' - 'Load Data' options.