释义 |
order of magnitude Loosely speaking, the power of 10 that can be used to represent a number—so n is the order of magnitude of k × 10n. Different conventions restrict k to the ranges 1/√10 ≤ k < √10 or 0.5 < k ≤ 5 or 1 ≤ k < 10, the last being scientific notation.
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