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线段

维基百科,自由的百科全书

一人正在试作线段,绘于1699年。

数学上,线段直线上两点间的一段,这两个点称为端点。参见区间

当终点均在圆周上,该线段称为。当它们都是多边形顶点,若它们是毗邻的顶点该线段为,否则就是对角线

在生活应用上,主要有三种——连结、隔开、删除

  1. 连结
    将不同处的两者做关连性的键结,其他如指示性补充亦同。
  2. 隔开
    将同一处的两区域分离,其他如景深、等位线亦同。
  3. 删除
    例:于撰写文章时,为保留创作的过程而将不妥之文句以线划除,其他如路线中的各站亦同。

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线段
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