Finally, extension algorithms for NURBS curves are discussed by means of homogeneous coordinates.

最后，利用齐次坐标讨论了NURBS曲线的延伸算法。

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This paper describes the matrix structure and geometric properties of planar linear transformations, based on homogeneous coordinates.

介绍了线性变换作用向量的化零多项式与最小多项式的概念，并讨论了它们的性质。

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It is shown that the 2_dimensional projective coordinate system can be constructed by homogeneous vector on the basis of the Descartes homogeneous coordinates.

在笛氏齐次坐标的基础上，采用齐次向量的方法，建立二维射影坐标系。

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