So, there is another way to plot the functions of two variables.

还有另外的一种方法画出二元函数的图像。

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So, we are going to focus on the case of functions of two variables.

我们将把注意力集中在二元函数上。

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So, we are going to focus on the case of functions of two variables.

我们将把注意力集中在二元函数上。

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