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近来,有关圆锥曲线中对偶的“点与线”问题,不断出现在中学数学期刊中,产生一系列的“新”结论.我们说,这些结论只不过是射影几何中早就成熟的结论.现借本刊提出来,以引起广大的中学数学研究人员的高度重视,在未来的初等数学研究中,真正给出具有创新性的新成果.1圆锥曲线中对偶的“点与线”的提出2010年,文[1]给出圆锥曲线中对偶的“点与线”的概念.定义[1]在抛物线中,点D在抛物线的对称
Recently, the issue of “points and lines” of duality in the conic appears constantly in secondary school mathematics journals, producing a series of “new” conclusions. We say these conclusions are only mature in projective geometry The conclusion is drawn from this paper to arouse the great attention of the majority of high school mathematics researchers and to give new and innovative achievements in the elementary mathematics research in the future.1 The duality of “ Line ”presents the notion of “ point and line ”for duality in a conic curve in [1] in 2010. Definition [1] In a parabola, the symmetry of point D in the parabola