特别地，当回归函数线性时，这类集合就是解释变量空间中的超平面。
In particular, when regression functions are linear, these sets become hyperplanes in explanatory variables Spaces.
在n维欧氏空间内，给出了多元函数分别关于点、n-1维超平面对称的充要条件。
Necessary and sufficient conditions are given on the symmetry of points and n-1 dimensional hyperplane of function of many variables in then-dimensional Euclidean space.
而且探讨了空间型中“超平面”的性质，这对构造体现空间型中闭曲面整体弯曲程度的例子是有帮助的。
Some properties of the "super plane" in space forms are investigated, which is helpful to construct the example showing the banding properties of the closed surfaces in space forms.
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