| 曲线凸性定义的等价性 |
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| 引用本文： | 于栖范. 曲线凸性定义的等价性[J]. 河北师范大学学报(自然科学版), 1993, 0(2) |
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| 作者姓名： | 于栖范 |
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| 作者单位： | 河北师范大学数学系 |
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| 摘 要： | 本文证明了现行高等数学教材中曲线凹凸性3种定义的等价性.
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| 关 键 词： | 曲线的凹凸 切线 可导 等价性 |
Equivalence on Definition of Curve Convexity |
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| Yu Xifan. Equivalence on Definition of Curve Convexity[J]. Journal of Hebei Normal University, 1993, 0(2) |
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| Authors: | Yu Xifan |
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| Abstract: | this article proves equivalence of the three definition of the concave and convex of a curve in the present higher mathematics teaching materials. |
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| Keywords: | curve concave convex tangent line differentiable eguivalence |
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