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

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