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 How to calculate area under plot???		  New Topic  Reply to Topic
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mw_walek

Poland
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Posted - 02/29/2008 :  07:09:07 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
As in subject, how to calculate area under plot in Origin??? (and inside of closed shape) I can't find out it...

wufengseu

China
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Posted - 03/02/2008 :  11:26:02 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi mw_walek.

The attached picture may help you solve the question.

Analysis-->Mathmatics-->Integrate

Edited by - wufengseu on 03/02/2008 11:30:13 PM
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oesimarkus

Algeria
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Posted - 04/30/2008 :  11:39:20 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi everybody,

I want to solve a similar problem:

I have a big graphic and i want to know the area only in a range between two points on the x - axis.

Can anybody help me,

Regards,
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greg

USA
1379 Posts
Posted - 05/05/2008 :  3:55:36 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Use the Data Selector tool to drag end markers to your region of interest then press Enter. Now when you integrate
Analysis : Mathematics : Integrate in Origin 8
Analysis : Calculus : Integrate in older version
the integration occurs only over the defined range.
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