All functions, whether built-in or user-defined, generally can be described as subroutines that return a value or complete a task. You pass information to the function in the form of arguments, ...

Random-number functions and CALL routines generate streams of random numbers from an initial starting point, called a seed, that either the user or the computer clock supplies.A seed must be a ...

Where we saw that Named Formulas update themselves, for User Defined Functions we just call them and then they return their values. So for example if we use the above function in a label, the ...