cylindrical coordinates

基本解釋

So, somehow they are more polar than cylindrical coordinates.
某種意義上，它比柱坐標更實用和流行一點。
We have rectangular coordinates, we have cylindrical coordinates and we have spherical coordinates.
我們有直角坐標系，有柱坐標系和球坐標系。
Now, if you don't like geography, - here's another way to think about it. So -- Let's start again from cylindrical coordinates, which hopefully you're kind of comfortable with now.
如果你們不喜歡地理的話，還有種方式來理解球坐標-,我們重新來看下柱坐標，現(xiàn)在來看，你們或許適應了。

three coordinates defining the location of a point in three-dimensional space in terms of its polar coordinates (r, ) in one plane, usually the (x, y) plane, and its perpendicular distance, z, measured from this plane