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1·Work coordinate system is constructed by mixing matrix representation and parametric representation.

坐标系使用矩阵与参数两种方式表示。

2·Data representation and coordinate transformations.

数据呈现及坐标转换。

3·The spatial attribute is a coordinate geometry, or vector-based representation of the shape of the feature.

而空间数据则为空间对象的几何坐标或向量表示。

4·These features help in learning the relationship between mathematical functions and their graphical representation in a coordinate system.

上述特性可以帮助你建立数学函数和坐标轴函数图的联系。