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skgdt330

Australia
2 Posts
Posted - 04/27/2025 :  10:06:06 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
I want to solve this.

f=134300=y/(x+a*(1-x)^b*(9*x^2/(1+2*x)^2-x))^c

Dependent Varables = x,y

Parameter = a,b,c

How to find using Non-linear curve fit -> a,b,c ???

could you give me a hand?? ㅠㅠ

YimingChen

1647 Posts
Posted - 04/28/2025 :  09:04:26 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
You can convert the equation to the form y = g(x), then use nonlinear curve fit tool in Origin?

https://www.originlab.com/doc/en/Tutorials/UserDef-FitFunc

James
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