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 Combination of explicit and implicit function fit		  New Topic  Reply to Topic
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bo_liubo

China
13 Posts
Posted - 05/15/2015 :  10:21:10 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Ver. and Service Release (Select Help-->About Origin): 9.1
Operating System: win7
Hello,
I want to fit my plot with two functions:
y=sqrt(x*cos(theta-b)); 2*x*sin(theta-b)-sin(2*theta)=0;
where x is the independent variable, theta is a function of x, and y is the dependent variable.
Because this is a combination of implicit and explicit function, I do not know how to use it properly. what can I do to complete this fitting procedure?

jasonzhao

China
262 Posts
Posted - 05/17/2015 :  10:35:11 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hello,

You can send the OPJ file to tech@originlab.com for us to check the data and initial value for this fitting problem.

Best regards!
Jason
OriginLab Technical Service
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