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单词 radical sign
释义

WordReference Random House Learner's Dictionary of American English © 2024
ˈrad•i•cal ˌsign, n. [countable][Math.]
  1. Mathematicsthe symbol √ or √ ̅, indicating that a quantity is a root of the quantity that is shown after or under the symbol, e.g., √25=5.

WordReference Random House Unabridged Dictionary of American English © 2024
rad′ical sign′, [Math.]
  1. Mathematicsthe symbol √ or √ ̅ indicating extraction of a root of the quantity that follows it, as √25=5 or ∛a3b3 = ab.
  • 1660–70

Collins Concise English Dictionary © HarperCollins Publishers::
radical sign n
  1. the symbol √ placed before a number or quantity to indicate the extraction of a root, esp a square root. The value of a higher root is indicated by a raised digit in front of the symbol, as in ³√
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更新时间：2025/7/31 12:29:59