meatbag

Thanks for the input guys. It seems I wasn't being silly

I know this is a stupid question but Im going to ask it anyway Ive written an iterative algorithm in C (programming language) and wondered how to represent this in maths. For example, int main(void) { int x; for(x=40; x>0; x/=2) { process(x); } return 0; } So each of the following is put into the equation... 40 20 10 5 2 1 Basically all I want to know is what do you use in maths to represent equating a formula with a range of input values?