When would you use global variables over arguments in a function? : <p>When would you use a global variable instead of an argument, vis versa. Also, why would you do this?</p>

<p>99.9% of the time, I use global variables then return a product of those variables. I rarely use Arguments in my functions, but I want to know when the right time to use either one of these is. Am I doing this wrong, or does it really matter?</p>
