The first version of the question was dreadful but, after the revision by @PeterTamaroff, this became a bona fide mathematical question. Hence I disagree with the decision to *close as not a real question*. – 2012-09-30
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@did Well, yes, it was. I took me some time to understand what it was and edit accordingly. We can reopen. – 2012-09-30
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How do I vote for reopen ? Or do I need more reputation for that ? – 2012-10-04