Say, polar coordinates. Let's say that I have a function but is defined in terms of the polar coordinate variables on theta.

比如说极坐标，有一个函数,是根据极坐标θ定义的。

youdao

You have a function that you want to switch between rectangular and polar coordinates.

把一个函数，在直角坐标和极坐标中转换。

youdao

Or, the other way around, I have a function of x and y and I want to express it in terms of the polar coordinates r and theta.

反过来，有一个关于x和y的函数,也可以表示成极坐标r和θ

youdao

I could imagine writing another function for same point, and I have to give it a name like same point polar, and same point Cartesian.

程序不知道怎么来做了,它没有对应的处理方法，所以它要抱怨了,那么我这里的问题就是，这也是我一直想要说的。

麻省理工公开课 - 计算机科学及编程导论课程节选

A different function to compare polar versions of these points.

我可以假设去为比较相同的店,再去写一个方法。

麻省理工公开课 - 计算机科学及编程导论课程节选

"Polar sea ice has an important function in moderating the global energy balance, " he said.

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