This huge continent on the Earth's South Pole covers about fourteen million square kilometers.

VOA: special.2009.06.03

Well, all this time int on the blackboard I always draw an int as a square.

嗯，向来,我在黑板上用一个正方形表示一个。

哈佛公开课 - 计算机科学课程节选

Look, part of the reason I'm flaming at you is, something like square root, it seems dumb to write specs on it. Everybody knows what this is going to do. But you want to get into that discipline of good hygiene, good style.

也是非常重要的，我在这里说的,一些理由就是像平方根,为它写规范听上去很傻,每个人都知道它是干什么的。

麻省理工公开课 - 计算机科学及编程导论课程节选

As long as we understand that, we can do this cancellation and this says on the left-hand side the change in the quantity v square over 2 is a times the change in the quantity x.

只要我们明白这一点,我们就可以这样做简化,在等号左边,v^/2的变化量,为a乘以x的变化量

耶鲁公开课 - 基础物理课程节选