I'm still looking for a good way to express what was meant by that symptom description. You know about tail recursion, but I'm trying to get at the uses of acc

I'm still looking for a good way to express what was meant by that symptom description. You know about tail recursion, but I'm trying to get at the uses of accumulators that have nothing to do with tail recursion. That and I got fed up with listing all of the exceptions to every rule.