I am going to use polar coordinates.
我将用极坐标。
Let's check what we had for polar coordinates.
我们来回顾一下极坐标。
And I would like to switch that to polar coordinates.
把它转换到极坐标系下。
Anyway, that is double integrals in polar coordinates.
这是极坐标系下的二重积分。
Or I can use polar coordinates,and it works a little bit better that way.
或者还是用极坐标系，这比直角坐标系更好。
OK, the right way to do this will be to integrate it in polar coordinates.
这道题最合适的方法，应该在极坐标系里面计算。
The claim is we are able, to do double integrals in polar coordinates.
这也就说明了，可以用极坐标做二重积分。
And, of course, we know also how to set up these integrals in polar coordinates.
当然，我们也知道，怎样用极坐标来计算这些积分。
With the plot command, gnuplot can operate in rectangular or polar coordinates.
使用plot命令，gnuplot可以在直角二维坐标系中进行操作。
If my solid is actually just going to be round then I might want to use polar coordinates.
如果实体是圆形状的话，那就可以考虑用极坐标系。
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。
But still we could set this up and then switch to polar coordinates to evaluate this integral.
但还是可以建立这个积分，然后转换到极坐标系下去求结果。
That's in line with the idea that we are just doing again, polar coordinates in the rz directions.
球坐标中的平面也差不多是这样了，只要把rz看做极坐标就行了。
So the idea of spherical coordinate is you're going to polar coordinates again in the rz plane.
所以说球坐标系,其实就是在rz平面再建立一个极坐标。
I mean usually you will switch to polar coordinates either because the region is easier to set up.
通常你转换到极坐标系下，有可能积分区域更容易建立。
And lofting with polar coordinates method can break through localization of deflection Angle method.
使用极坐标法放样可以避免偏角法的局限性。
Yes? In case you want the bounds for this region in polar coordinates, indeed it would be double integral.
请说，你想知道极坐标系下的积分边界，这是一个二重积分。
According to this process polar coordinates can be extrapolated by means of data in changeable length.
根据这方法能够用可变长度的资料对地极坐标进行外推。
There are many advantages to adopt polar coordinates system interpolation in swing structural machines.
在旋臂式结构的机械加工装置中采用极坐标图形插补具有很多优点。
So, the bad news is we have to be able to do it not only in xy coordinates, but also in polar coordinates.
接下来有个坏消息就是，不仅要会在xy坐标系里做，还要会在极坐标系里做。
Now, of course, is the region is really looking like this, then you're not going to do it in polar coordinates.
当然，如果区域是这样的，就没有必要用极坐标来做了。
The equations provides the base of research for nonlinear thermoelastic coupled vibration in polar coordinates.
所得结果提供了在极坐标下分析非线性热弹耦合振动问题的重要基础。
The theoretical and numerical formulas for gravity and height variations in spherical polar coordinates are derived.
导出了重力、高程变化及相互关系在球坐标系中的理论和数值计算公式。
This paper introduces the method that how to use polar coordinates to measure bridge in road engineering construction.
本文介绍了在公路工程建设中如何应用极坐标进行桥梁测量的方法。
The displacement solution is constructed by applying the methods of complex function and multi polar coordinates system.
利用复变函数和多极坐标方法构造了问题的位移解。
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。
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
There are two kinds of coordinates, Cartesian coordinates and polar coordinates, with which spatial issues are analyzed and calculated.
分析和计算的空间问题，一般可采用两类坐标系：笛卡儿直角坐标系和极坐标系。
R This one is a double integral. So, if you are doing it, say, on a disk, you would have both R and theta if you're using polar coordinates.
不是变量，这是在一个圆上。，R，is，not，a，variable。，You，are，on，the，circle。,这个是二重积分，如果你们这么做的话，在圆盘上，如果你们用极坐标的话,就需要用到R和θ
R This one is a double integral. So, if you are doing it, say, on a disk, you would have both R and theta if you're using polar coordinates.
不是变量，这是在一个圆上。，R，is，not，a，variable。，You，are，on，the，circle。,这个是二重积分，如果你们这么做的话，在圆盘上，如果你们用极坐标的话,就需要用到R和θ
应用推荐