Obviously. Most people relate to a common recognizable shape. When I taught scuba, to give students an example, I explained if you took a phone booth and were able to attach a hose to it and a std 80cu ft scuba tank and crushed the phone booth down to nothing the scuba tank would have 3000psi in it. Did not mean to offend, the example was way out of whack.That works also but now that you've quoted he won't be able to delete. cf=cf the sum doesn't need to be in cube form.
I'm sure DesrtSilver knows, he just made a simple mistake. Happens more to me every day.
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