The Bank of England has been providing an example for the world for a long time.

英格兰银行一直在很长时间内,为世界各地的银行提供了例子。

耶鲁公开课 - 金融市场课程节选

Second thing they're going to do is let us suppress detail. And in essence what that does is, the functions, and we're going to look at a bunch of examples in a second, these functions are going to give us a way to, in some or in one way of thinking about it is to create new primitives.

第二件要做的事,是忽略细节,函数的本质到底是什么,我们将在接下来的几分钟，举一些例子，这些函数将给我们提供,一种创建原语的思考方式。

麻省理工公开课 - 计算机科学及编程导论课程节选