摘要
我们基于穷举法的思想介绍一种光滑曲线的弧长的严格定义并由此推导出弧微分公式,从而帮助学生更好地理解并掌握相关的知识点.
Based on the method of exhaustion, we introduce a rigorous definition of the arc length for smooth curves and then deduce the formula of arc differential, to help students understand and learn related knowledge points better.
作者
王涛
WANG Tao(School of Mathematics and Statistics,Wuhan University,Wuhan,Hubei 43007)
出处
《科教导刊》
2018年第23期145-146,共2页
The Guide Of Science & Education
关键词
弧长
弧微分
极限
穷举法
arc length
arc differential
limit
method of exhaustion
