The formula of the curve tangent slope at some peculiar point in the orthograph on the stereoscopic surface intersecting line and the method of making tangent are given as well.
本文通过可展曲
的微分不变量,导出可展的曲率线与曲率特征,并以锥
线曲为例阐明这些特性的几何意
。
词词The formula of the curve tangent slope at some peculiar point in the orthograph on the stereoscopic surface intersecting line and the method of making tangent are given as well.
本文通过可展曲的微分不变量,导出可展的曲率线与曲率特征,并以锥线曲为例阐明这些特性的几何意。
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