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Encyclopedia :: encyclopedia : Orders of magnitude (Site not responding. Last check: 2007-10-21) |
 | | Thus, an order of magnitude is an approximate position on a logarithmic scale. |
 | | An order of magnitude estimate of a variable whose precise value is unknown is an estimate rounded to the nearest power of ten. |
 | | For example, an order of magnitude estimate for a variable between about 3 billion and 30 billion (such as the human population of the Earth) is 10 billion. |
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