A famous mathematician once said "Every question must have a correct answer " for every question one answer."

一位著名的数学家曾说过,“每一个问题都必定有一个正确的答案,每一个人们所回答的问题“

耶鲁公开课 - 政治哲学导论课程节选

I'm going to start this lecture with a discussion of how one constructs a portfolio and what are the mathematics of it.

首先我想讲讲,怎样建立一个投资组合,以及与其有关的数学问题。

耶鲁公开课 - 金融市场课程节选

Because that's life in computing.

这并不像一个数学问题集。

麻省理工公开课 - 计算机科学及编程导论课程节选