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 Birch-Murnaghan equation		  New Topic  Reply to Topic
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physicien001

Germany
1 Posts
Posted - 12/11/2017 :  04:25:49 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Hello everybody,
I would like to fit my data below with Birch-Murnaghna equation in Origin, someone can help me.

Thank you in advance

x y
0 3,71728
1,38296 3,69184
4,38272 3,65631
8,55751 3,70592
11,67376 3,76359
14,32356 3,88698
19,11865 4,09756
20,97968 4,18881

arstern

USA
237 Posts
Posted - 12/11/2017 :  08:43:03 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi you can define a nonlinear curve fitting function within Origin. Please see tutorial:
https://www.originlab.com/doc/Tutorials/UserDef-FitFunc

More documentation on nonlinear curve fitting:
https://www.originlab.com/doc/Origin-Help/FitFunc-Organizer-Builder

Thanks,
Aviel
OriginLab
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