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单词 surd
释义
surd

Physics
  • A quantity that cannot be expressed as a rational number. It consists of the root of an arithmetic member (e.g. √3), which cannot be exactly determined, or the sum or difference of such roots.


Mathematics
  • An irrational number in the form of a root of some number (such as 5, 23 or 42/3) or a numerical expression involving such numbers.


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