And to find the bounds perhaps the easiest is to draw a picture of a region in u, v coordinates.

相对简单的、找出边界的办法,就是在u、v坐标系下画出积分区域。

youdao

Create the region cicscp: -v create region.

创建区域cicscp： - v create region。

youdao

OK, so when I'm here, v when I'm entering my region, the value of u at this point is just v, u equals v. That's the hard part.

所以，在这里，当我进入的时候，u在这一点的取值就是,即u=v，这是比较难的部分。

youdao

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