这是因为地震级数是按对数计算的。

That's because quake magnitudes are calculated on a logarithmic scale.

youdao

通过对NG82-1型冲击电流计测高阻计算公式的讨论，找到用自然对数计算较为方便。

Through the discussion of computing formula for measuring high resistance by Mdoel NG82-1impact corrent galvanometer, it is discoverde that it is much casier to do calculation by natural logarithm.

youdao

它也用编好的子程序计算对数和三角。

It was also programmed with subroutines for logarithms and trigonometry.

youdao

You might remember vaguely logarithms from high school math and such but what this suggests for us , the computer scientists, is that this is certainly a smarter, a faster algorithm.

你可能还会依稀记得,高中数学里的对数,这就给了我们这些计算机科学家们，一些启示,即，这种算法更智能，更迅速。

哈佛公开课 - 计算机科学课程节选

If you go and work that out, log2 log of two and you have two log two, by math you can show that for the line r series m 2*log2 is equal to two natural log of two, which is 1 1.386 which is greater than one.

如果你把它计算出来，这二者的对数，你会得到2个，通过数学，你会得到第r列，第m个值,等于,也就是1。386，这大于。

麻省理工公开课 - 固态化学导论课程节选