A function which will do all the checks for FFF, check the parameters are in the proper ranges, etc. Does not return any values.
checkFFFargs(lambda, functionName = "")The value of the FFF. Must be finite, in range [0,1], etc.
The name of the original function which is being
called to check the parameters. Will help user
with debugging. Default is "", in which
case no function name will be displayed.