You can use it to construct x-y graphs, contour plots, and image graphs with fine control over graphing attributes.(可以使用它来构造x-y图、轮廓图以及可以通过图形属性进行精细控制的图像。)
OK, so these are examples of contour plots in real life. OK, no questions?(这些都是现实生活中关于等高线图的例子,有问题吗?)
So, here's version two of my plot where I've added the contour plot of a function, xy on top of the vector field.(这是第二张函数图,我在上面添加了函数xy的轮廓,放在了向量场上面。)
That is the contour plot of f with a hyperbola on top of it.(上面这个是f的等高线,黄色的就是双曲线。)
But, the contour plots look exactly the same.(然而,等高线图是完全一样的。)
The second problem is one about writing a contour plot.(第二题是找等高线。)
While shapes are mostly defined by a contrast between elements, they're also defined by their contour, or edge.(虽然形状主要是通过元素间的对比来定义,但它们也可以借助轮廓线或边来定义。)
Having to custom cut each shingle to match the contour of the curves slowed my progress.(为了配合曲线轮廓,必须切削每块木瓦,这减慢了我的进度。)
we've seen is how to actually view a function of two variables in terms of its graph and its contour plot.(我们学过怎样认识二元函数,从它的图像和等高线的角度来看。)
So, the contour plot, well, let me actually zoom out.(我们来放大它的等高线图。)