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How to set upper or lower limit for dependent variables

Posted 2020年3月3日 GMT-5 08:03 Version 5.5 2 Replies

传胤 姜
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I want to set a upper limit value for the dependent varible c to promise c<=2. but I type in the input box '2 c', error occurs : 'Unknown model parameter. - Parameter: c'. How to solve the problem?

2 Replies Last Post 2020年3月3日 GMT-5 10:22
Magnus Ringh COMSOL Employee

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Posted: 5 years ago 2020年3月3日 GMT-5 08:37

Hi,

The correct syntax here, if the concentration variable comes from Component 1, should be comp1.c 2.

Best regards,

Magnus Ringh, COMSOL

Hi, The correct syntax here, if the concentration variable comes from Component 1, should be `comp1.c 2`. Best regards, Magnus Ringh, COMSOL
Pu
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Posted: 5 years ago 2020年3月3日 GMT-5 10:22

Hi,

The correct syntax here, if the concentration variable comes from Component 1, should be comp1.c 2.

Best regards,

Magnus Ringh, COMSOL

Has now the latest version the option for setting limits for a dependent variable? That's interesting.

-------------------
ZHANG, Pu
School of Physics,
Huazhong University of Science and Technology
>Hi, > >The correct syntax here, if the concentration variable comes from Component 1, should be `comp1.c 2`. > >Best regards, > >Magnus Ringh, COMSOL Has now the latest version the option for setting limits for a dependent variable? That's interesting.

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