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 FAQ：如何画出某一点的切线？		  New Topic  Reply to Topic
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yuki_wu

896 Posts
Posted - 05/18/2016 :  11:07:03 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Q：已有一条曲线，如何画出曲线上任意点的切线？

A：Origin 2016提供APP：Tangent供用户快速画出曲线上任意点的切线。用户可执行：

1.下载App:Tangent后将其拖入Origin，然后在Origin窗口右上方即会出现Tangent的图标
下载地址：http://originlab.com/fileExchange/details.aspx?fid=227




2.点击Tangent按钮打开对话框，完成自定义设置后点击OK，图形上就会出现一条垂线。
3.点击垂线下方的三角标，移动垂线寻找需要画切线的点，切线会跟随垂线的移动而移动
4.点击图中右上方的三角标，选择New Output可固定选中点的切线于图上
5.移动鼠标到曲线上另一点，点击Tangent按钮，即可新增另一条切线到图上
6.点击图中右上方的三角标，选择Preferences可重新打开Tangent的对话框，对其进行自定义设置
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