If they type in bogus characters, it's going to yell at them and make them retry, and eventually I'm going to get handed back an int, which I'm storing in n. Well, if I actually want to judge this number based on its magnitude, well, I can say now, "If n is greater than or equal to one."

如果他们键入了不合法的字符，它将对他们叫喊,然后叫他们重试，最终我将,得到一个int数，它是存储在n中的，好的，如果我的确想要根据它的量级来判定这个数字，好的，现在我可以指明，“是否n大于等于1“

哈佛公开课 - 计算机科学课程节选

Immediately after the collision, a constant braking force of magnitude 250 N is applied to C.

BBC: Colleges despair at exam board 'error'