这个数学题目的方程序怎么写？

What is the formula for this math problem?

youdao

检查数学题目，校对论文手稿，看看有没有拼错的单词。

Offer to check math problems, proofread written papers, and look over spelling words.

youdao

假如你用你的头脑，你就能解决这个数学题目。

If you use your grey matter, you can solve this math problem.

youdao

It happens. Fortunately, while sitting in jail awaiting trial, the slow thief decided to figure what was wrong. And, amazingly enough, he had studied mathematics. And had a blackboard in the cell. So he was able to work it out.

失主叫了警察然后小偷最后被抓进了监狱,幸运的是这个贼做来牢房里,等待判决时发现了自己的错误,它很惊人的学习过数学，牢房里,还有一个黑板，它可以把题目算出来了。

麻省理工公开课 - 计算机科学及编程导论课程节选