| Change log entry 93164 | |
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| Processed by: | richwarm (2026-01-19 21:33:39 UTC) |
| Comment: |
<< review queue entry 85376 - submitted by 'encn' >> 具体地说，有效数字是指在分析工作中实际能够测量到的数字。能够测量到的是包括最后一位估计的，不确定的数字。 我们把通过直读获得的准确数字叫做可靠数字；把通过估读得到的那部分数字叫做存疑数字。把测量结果中能够反映被测量大小的带有一位存疑数字的全部数字叫有效数字。测得物体的长度5.15cm。数据记录时，我们记录的数据和实验结果真值一致的数据位便是有效数字。 另外在数学中，有效数字是指在一个数中，从该数的第一个非零数字起，直到末尾数字止的数字称为有效数字，如0.618的有效数字有三个，分别是6,1,8。 ------------------- Editor: The singular form is attested, but "significant figures" is the unmarked technical term (the default, neutral form), and better represents the concept, I feel; the singular can be inferred. Encyclopaedia Britannica uses the plural form as the title of its article on the concept, for example. https://www.britannica.com/science/significant-figures Btw, I happened to read this book of biographies of mathematicians recently: https://en.wikipedia.org/wiki/Significant_Figures_(book) |
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# 有效數字 有效数字 [[you3xiao4 shu4zi4]] /significant figure/ 有效數字 有效数字 [[you3xiao4 shu4zi4]] /significant figures (in a measured value)/ |