Dictionary:Order of magnitude

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{{#category_index:O|order of magnitude}} The nearest integer to |log10X/S|, where X and S are two quantities being compared. One order of magnitude indicates that one quantity is of the order of ten (or a tenth) times the other value, two orders of magnitude 100 (or 1/100) times, etc. Used to make crude comparisons or to give the error or uncertainty of measurement.