| T O P I C R E V I E W |
| zsigy |
Posted - 10/25/2005 : 5:14:58 PM
Origin Version (Select Help-->About Origin): 7.5 SR1
Operating System: WinXP
Is Origin able to do complex nonlinar fitting on functions of complex numbers?
If yes, could one explain me how does it work?
Istvan Gy. Zsely |
| 3 L A T E S T R E P L I E S (Newest First) |
| minimax |
Posted - 08/29/2008 : 05:27:50 AM
Hi Istvan,
You may take a look at this post to check if it would help you:
http://www.originlab.com/forum/topic.asp?TOPIC_ID=7296
Max
OriginLab Technical Support |
| zsigy |
Posted - 10/28/2005 : 03:39:12 AM
Dear Leo,
Yes, this is a possibility and thank you for the link, but some functions of us are not easy-to-convert ones.
For example Z(w) = P0 +(P1/(iw)^(1/2))coth[P3(iw)^(1/2)]
+(P2/(iw)^(1/2))tanh[P3(iw)^1/2]
Has somebody any other idea?
Istvan Gy. Zsely |
| Leo_Li |
Posted - 10/27/2005 : 03:46:24 AM
With a little work you can do nonlinear fitting on a function of complex numbers:
Assume your function is in the form of y = f(z), in which, the independent variable z = a + bi;
Convert the function to: y = g(a, b), so you have two indepents a, b;
Don't know how to fit a function with multiple independents? Please check:
http://www.originlab.com/index.aspx?s=9&pid=434
Leo
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