指数式增长（Exponential Growth），就是指一个变量增长的速率与它此时的数量成比例。假设变量x随时间t指数式增长，那么根据定义，x的变化量遵守如下的微分方程：其中，k>0，是一个常数，表示x增长的一个比例。
试图保持电子元件能力指数式增长的工程师们有两个难题：将元件做的更小和使元件散发更少的废热。
Engineers trying to maintain the exponential growth in the power of electronics have two preoccupations: making components smaller and making them produce less waste heat.
试图保持电子元件能力指数式增长的工程师们有两个难题：将元件做的更小和使元件散发更少的废热。
Trying to maintain the ability to exponential growth of electronic components, the engineers have two problems: the components needed to make devices smaller and less waste heat distribution.
你或许认为编码量加倍软件复杂性也相应加倍，但实际上，每增加一些编码，软件的复杂性就随之指数式增长。
You'd think that twice as much code would make your software only twice as complex. But actually, each time you increase the amount of code, your software grows exponentially more complicated.
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