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Madi-7

Hungary
6 Posts
Posted - 08/19/2023 :  03:10:11 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
OriginPro 2021 (64-bit)
9.8.0.200 (Academic)
Windows 11

Hi there,

I would like to fit Bateman equation (https://en.wikipedia.org/wiki/Bateman_equation) to my data. I do not find it among the Origin functions with this name. Is there a similar one? Now, the simplest version (two elements in the decay chain) would be enough for me.

Thank you very much.

YimingChen

1600 Posts
Posted - 08/21/2023 :  08:48:46 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
You can use this app to fit ODE equations.
https://www.originlab.com/FileExchange/details.aspx?fid=500

If you want to fit with the explicit formula, please refer to this page on defining the fitting functions.
https://www.originlab.com/doc/en/Tutorials/UserDef-FitFunc

James
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Madi-7

Hungary
6 Posts
Posted - 08/23/2023 :  09:44:21 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Thank you very much, James. We defined the explicit function.
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