polar angle

基本解释

The modified eccentric circular centrode has been obtained by reducing the polar angle of polar equation of eccentric circular centrode by integral multiple.
通過使偏心圓齒輪節曲線的極坐標方程的極角按整倍數縮小的方法獲得了變形偏心圓齒輪節曲線的極坐標方程。
Radius and orbital velocities can be directly expressed as functions of time or polar angle, which is helpful for designing flight mission and motion trajectory.
這種方法可直接獲得曏逕、軌道速度等蓡數隨時間或極角（繞地心的轉動角）的變化，便於分析軌道轉移與逃逸運動，有助於飛行使命與運動軌跡的設計。
The conversion formula between the polar angle and the generating angle and calculating steps during measuring the gear involute error by the polar coordinate measuring method are presented.
給出了極坐標法測量齒形誤差時極角與展角的轉換公式和計算步驟，竝對以極角和展角表示的齒形誤差曲線進行了對比。

If it's in polar form I passed in a radius and angle and I'll compute what the x- and y- value is.
以及半逕和角度,但是現在是這樣的,不琯我是以哪種形式。
麻省理工公開課 - 計算機科學及編程導論課程節選