【配极曲线】

配极曲线

[数] polar curve

... 自动尺寸标注 automatic dimensioning 配极曲线 polar curve 生活的意义 meaning of life ...

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polar reciprocal curves

... 极对演；配极[变换] polar reciprocal 配极曲线 polar reciprocal curves 配极图形 polar reciprocal figures ...

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短语

自配极曲线 [数] self-polar curve

数学

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文章利用射影几何方法及配极原理给出二次曲线中点弦存在性定理的证明。

In this paper, the existence theorem of midpoint chord of quadratic curve, as well as its proof, is given via methods of projective geometry and polarity principle.

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