V=VERSION()
This function returns the major version of F/x as a number. Use this function to determine if the running version of F/x has the required facilities to run your script.
R=REVISION()
This function returns the revision of the major version of F/x as a number. Use this function to determine if the running version of F/x has the required facilities to run your script.
L$=LEVEL()
This function returns the level of the revision of the major version of F/x as a string. Use this function to determine if the running version of F/x has the required facilities to run your script.