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 3D surface fit		  New Topic  Reply to Topic
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hzbalci

USA
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Posted - 03/17/2005 :  11:04:08 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
I want to make a polynomial fit to a 3D surface. The polynomial should have the mixed terms of the two independent variables as well, i.e. z=a+bx+c(x^2)y+d(y^3)(x^2)+......
Is this possible with Origin? If yes, what is the maximum number of fitting parameters I can use?
Thanks
Hamza

easwar

USA
1965 Posts
Posted - 03/17/2005 :  2:34:07 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi Hamza,

Please see this post:
http://www.originlab.com/forum/topic.asp?TOPIC_ID=3652

As for limit on maxium number of parameters, I think that is 200. You can look that up in the Origin help file.

Easwar
OriginLab
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avoska

Ukraine
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Posted - 04/10/2007 :  06:32:28 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Thank you very much! It's really helpful article!
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