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LionAM
Germany
11 Posts |
 Posted - 12/07/2010 : 5:08:51 PM
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Hello,
is the Lambert W function already included in Origin? Or do I have to calculate the values on my own? I would like to use it for fitting some data.
Thank you in advance.
Alex
Origin Ver. 8 and Service Release 6 (Select Help-->About Origin):
Operating System: Windows XP |
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larry_lan
China
Posts |
Posted - 12/07/2010 : 8:34:21 PM
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Hi:
No this build-in function. Besides, the non-linear fitting tool doesn't supports complex number and implicit function.
Thanks
Larry |
Edited by - larry_lan on 12/07/2010 8:37:12 PM |
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LionAM
Germany
11 Posts |
Posted - 12/08/2010 : 5:16:25 PM
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Thank you,
I'm only interested in the real part of the function, with positive argument. So this should not be a problem (an although the definition of the function is implicit, you can express it explicitely by an iterative approximation).
Alex |
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easwar
USA
1964 Posts |
Posted - 12/10/2010 : 09:15:17 AM
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Hi Alex,
Thank you for suggesting this. As Larry mentioned we don't have this function currently. It is available in NAG Library Mark 9 (real values) but currently we include NAG Mark 7 in Origin. In future Origin version we will be updating to NAG Mark 9 and then this function will be available.
Easwar
OriginLab |
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fliozzi
Argentina
6 Posts |
Posted - 05/22/2012 : 04:40:40 AM
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The Lambert W function is important in electronics is required, when they are going to incorporate, what have promised a while.
Thanks.
I`am electronic engineering student. |
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Sam Fang
293 Posts |
Posted - 05/23/2012 : 11:03:27 PM
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Lambert W function is already available in OriginC of Origin8.6. For the function's information, you can see the page.
http://www.originlab.com/pdfs/nagcl09/manual/pdf/c05/c05bac.pdf
Thanks for your suggestion.
We will provide a simple form of the function for users to call easily in OriginC and LabTalk. Since Origin9.0 will support implicit fitting, we can also provide it as a built-in implicit fitting function. I have added it to our bug tracking database ID: ORG-5788, ORG-5789.
Can you tell us the function's form for Lambert W function in fitting? e.g. fitting parameters. It will be better if you can send us sample fitting data for the function.
Thanks.
Sam
OriginLab Technical Services |
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HHuni
Germany
1 Posts |
Posted - 01/10/2013 : 11:14:35 AM
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Hello,
I tried to find the announced Lambert W function for fitting to progression curves in Origin 9.0 but wasn't able to find it. Has the function been included into version 9?
Best wishes,
Matthias |
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Topic |
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Lambert W function