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
微分不变量,导出可展率线与率特征,并以锥和切线为例阐明这些特性几何意义。
叉
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重叠;
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交线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.
本文通过可展微分不变量,导出可展率线与率特征,并以锥和切线为例阐明这些特性几何意义。
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