但是在特殊情况下，比如执行数百万次求幂运算时，则需要考虑能否转换它们以使用Math . scalb 。
However, in those rare cases where you are doing many millions of exponentiations, you may want to think about whether you can convert them to use Math.scalb instead.
即使同一台计算机很可能已经连续完成同样的运算达数百万次之多，但每当它重复这一运算时都得准确地告诉它如何去完成这一运算。
Even though the same computer might have performed the same operation millions of times in succession, it must still be told exactly how to do that operation every time it repeats it.
即使同一台计算机很可能已经连续完成同样的运算达数百万次之多，但每当它重复这一运算时都得准确地告诉它如何去完成这一运算。
Even though the same computer might have performed the same operation millions of times in succession, it must still be told exactly how to do that operation every time it repeats it.
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