教学中用定积分求曲线弧长的改进
교학중용정적분구곡선호장적개진
Development of Solving Curve Arc Length by Definite Integral in Teaching
  • 万方数据
    洛阳师范学院学报 락양사범학원학보
    JOURNAL OF LUOYANG TEACHERS' COLLEGE
    2011年 11期 11-12 ,共2页

    王嘉谋%何莉敏

    왕가모%하리민

    微元法%弧长%折线%切线 微元法%弧長%摺線%切線
    미원법%호장%절선%절선
    micro-element method%arc length%broken line%tangent line
    本文利用光滑曲线弧长定义直接推导出求曲线弧长公式,改变了以往以切线近似代替弧长导出求曲线弧长公式的思想.
    본문이용광활곡선호장정의직접추도출구곡선호장공식,개변료이왕이절선근사대체호장도출구곡선호장공식적사상.
    This paper directly derives the curve arc length formula from the definition of smooth curve arc length.Ideas about approximating the arc length with tangent line have changed to get the arc length formula of smooth curve before.
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