I often use named variable for better clarity, but in this case, I find ediag to be more readable than vdiag, because you see immediately the math formula. It is by looking at the ediag function that I quickly saw that it can be simplified to: 
sub ediag {
  return  $_[0] * $_[1];
}

[download]
as I said in my other post. I would not pick up that immediately when looking at vdiag.

In reply to Re^2: Very basic question on performance by Laurent_R
in thread Very basic question on performance by morrin

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