Because in an under-constrained problem there could be multiple solutions. So suppose I want to capture all of them or print all of them out.

因为在一个非约束性问题中,可能会有多组答案,所以假设我想把它们,全部获取或者全部输出。

麻省理工公开课 - 计算机科学及编程导论课程节选

We'll be using the solutions, so you shouldn't have a problem, but I wanted to point it out so it does not look too strange to you.

我们将会用它的解，所以你们不应该问题，但是我想提出它,这样你们就不会对它太陌生。

麻省理工公开课 - 化学原理课程节选

The third group that was given the candies and put in a positive playful mood outperformed the other two groups significantly-- they thought about more options and they actually came up with better solutions with that problem.

第三组得到糖果,并获得积极愉快的心情,明显比另外两组有更好表现-,他们考虑更多选择,得出更好的问题解决办法。

哈佛公开课 - 幸福课课程节选

So always amazing to us how we go into the problem, our eye or mind can see one class of solutions, but the math will tell you sometimes there are new solutions and you've got to respect it and understand and interpret the unwanted solutions, and this is a simple example where you can follow what the meaning of the second solution is.

解决问题的方式总能让人惊喜不已,我们的眼睛或思想可以看见一类解,但数学有时会告诉你还有新的解,你不能忽视它,而是解释这些不期而至的解,这只是一个简单的例子,由此你可以理解第二个解的意义

耶鲁公开课 - 基础物理课程节选