We're going to be talking about these in finance in regards to returns because-- generally the idea here is that we want high returns.

接下来我们讨论它们在金融学中的应用,从收益的角度来说,一般我们都渴望高收益

耶鲁公开课 - 金融市场课程节选

Therefore, mathematically at a given time t, we can trade t for v and put it into this formula.

因此,从数学角度来说,在给定的时刻 t,我们可以用 v 来表示 t,并代入这个式子

耶鲁公开课 - 基础物理课程节选