Go to Filter > Distort > Polar Coordinates and select Rectangular to Polar.

到过滤器>扭曲>极坐标,并选取矩形极性.

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。

Well, what is the equation of this circle in polar coordinates?

那么，这个圆方程在极坐标系下相当于什么呢？

Understand what the differences are between polar coordinates and the Cartesian plane.

了解之间的差异极坐标和直角平面。

The unitary iris image is carried out through the transformation from Cartesian coordinates to polar coordinates.

然后采用极坐标转换对虹膜图像进行归一化.

The measurement equation is linear in polar coordinates but is nonlinear in cartesian coordinates.

量测方程在极坐标中是线性的,但在笛卡儿坐标系中却是非线性的.

The computation of natural convection in the annulus between horizontal concentric cylinders using spectral element method in polar coordinates is presented in this paper.

提出了将谱元方法应用到极坐标系下，利用极坐标系下的谱元方法求解环形空间内自然对流问题。

With examples, this article attempts to explain the method of polar coordinates and its application in conic .

结合实例，阐述了极坐标法在圆锥曲线中的运用。

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。

The candidate points for the contour are collocated by transforming the snake into polar coordinates.

通过把蛇模型转化到极坐标中，使轮廓的候选点得以更有序的排列。