They like to--when they're computing the investment yield, they want to be completely honest and not use any rules of thumb.

当他们计算投资收益率的时候,他们需要完全精确,而非用经验公式

耶鲁公开课 - 金融市场课程节选

But one of the teaching fellas also passed long to us recently, a little real world example of what happens when you're not mindful of various data types and you're not mindful of the imprecision that's inherent in representing data in a computer, at least using a language like C and low level primitives like floats and even doubles.

最近有个助教告诉我们，一个现实世界中的例子,当你不注意各种各样的数据类型,也不注意在计算机中表示数据时,其内在的不精确性，至少在用像C语言,和float甚至double型数据时，那将会发生什么？

哈佛公开课 - 计算机科学课程节选