Menu

Discussion Forum

New Discussion
查找

Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

Unknown function or operator

Posted 2013年2月15日 GMT-5 15:37 RF & Microwave Engineering Version 4.3 1 Reply

Ray
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

I defined an integration operator intop2 under Model 1 --> Definitions. But when I try to plot the results under Results --> 1 D Plot Group 1 --> Global 4, it says "Unknown function or operator. -Name: intop2 -Plot: glob4 (global)."

What's wrong? Why can't I plot the integration vs frequency?

Thanks.
1 Reply Last Post 2013年2月17日 GMT-5 11:49
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 2013年2月17日 GMT-5 11:49
Hi

I see two possibilities (could be others too)
1) the calling if intop2() is wrong somehow, as the result will be a global variable, but you need to apply the intop onto a boundary/domain
2) you have defined the intop after you have solved the model, and you have not "updated" the solution, so that theintop variable is not defined in the "Data Set"

--
Good luck
Ivar
Hi I see two possibilities (could be others too) 1) the calling if intop2() is wrong somehow, as the result will be a global variable, but you need to apply the intop onto a boundary/domain 2) you have defined the intop after you have solved the model, and you have not "updated" the solution, so that theintop variable is not defined in the "Data Set" -- Good luck Ivar

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

Suggested Content