BKLick wrote, "I was saying that JotSC was mystifying, instead of clarifying..."

That is an idiotic statement. You may not agree with what I answered, but I referred gnu back to ten days worth of explanations, the re-reading of which might help him in clarifying his understanding of the problem. What's mystifying is that you used the word mystifying.

BTW, it is nice of you to take up for gnu...I know him to be the shy, incoherent, retiring type who never speaks up for himself.