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| 一类曲线族的包络的初等求法 | |
| 摘 要： | 本文论述曲线族的方程为关于参数的三次方程时,其包络曲线方程的初等求法。 |
| 关 键 词： | 曲线族 包络 三次方程 |
An Elementary Solution to the Envelope of a Kind of Family Curves |
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| Authors: | Yang Jinju |
| Abstract: | This paper discussed an elementary solution to the envelope of a kind of family of curves of which the equation was one of the cubic equations in regard to a parameter. |
| Keywords: | family of curves cnvelope cubic equations |
| 本文献已被 CNKI 等数据库收录！ | |