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 下图如何积分并求面积

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T O P I C    R E V I E W
Linda_zeng Posted - 05/13/2016 : 03:09:04 AM


这个你要首先把数据手动拆分成上曲线跟下曲线两部分,然后以下曲线为Baseline对上曲线进行积分,如下图所示:


具体步骤:
1. 拆分数据为曲线1(黑色)和曲线2(红色)
2. 选中两条曲线把两条曲线画在同一副图中
3. 去到菜单Gadgets: Integrate打开积分快捷工具(黄框)
4, 在integration选项卡,设置Area Type为Absolute Area
5. 在Baseline选项卡,设置Mode 为Use Existing Dataset,然后点右边的三角按钮选黑色曲线为dataset
6.点击OK按钮,你就可以看见灰色为积分区域。Area显示在黄框顶部。


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