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idonotexistKH

Malaysia
2 Posts
Posted - 04/26/2023 :  12:46:23 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Hi, I am new to using Origin. I want to fit a graph to cos(theta)^2, but I am not sure as to how to write the equation to fit it. Could someone give me a step by step guide?

This is what I have done for now.

snowli

USA
1426 Posts
Posted - 04/26/2023 :  09:09:54 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Please check if this tutorial helps
https://www.originlab.com/doc/tutorials/userdef-fitfunc


Thanks, Snow
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idonotexistKH

Malaysia
2 Posts
Posted - 04/26/2023 :  9:27:21 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Sorry, I know how to input the fitting, I meant to ask how to write the equation, specifically the parameters. How do you determine that?
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