Quote:
Originally Posted by BigV
http://en.wikipedia.org/wiki/Overline scroll down to the math and science section
it's a notation that means repeat what follows the overbar. so, the decimal notation for 1/3 would be 0.33333333..forever. Since I don't have the easy chops to make the bar appear OVER the 3, I use the overbar (as a separate character) to precede the 3, but it means the same.
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And I did it by copy-and-pasting your overbar.
I tried cutting and pasting a real overbarred number from a wikipedia page (i even opened an editing page to change it from a 9 to a 6), but the bar got eaten when moving to the advanced editor, so I went with yours.