polar coordinate

常见例句

This guy, you have two different ways of getting its polar coordinate equation.
有兩種辦法,可以得出極坐標系下的方程。
Say, polar coordinates. Let's say that I have a function but is defined in terms of the polar coordinate variables on theta.
比如說極坐標，有一個函數,是根據極坐標θ定義的。
And because you integrate first over r, well, first of all you should remember the polar coordinate formulas, namely x equals r cosine theta and y equals r sine theta.
這樣的話，我們就先對r積分，儅然了，首先得要記住坐標轉換的公式，也就是x=rcosθ，y=rsinθ