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 The information provided may be out of date.

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Doesn't COMSOL accept complex interpolation functions?

Posted 2012年3月2日 GMT-5 17:40 Version 3.5a 4 Replies

Pu
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It seems so...

I have to define the real and imaginary parts separately.
4 Replies Last Post 2012年3月3日 GMT-5 06:39
Kasra Pourang
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Posted: 1 decade ago 2012年3月2日 GMT-5 17:49
I did so by writing like this:
real(f)
imag(f)

where f is the desired function. For example, in my work, I wanted to plot a function which was frequency- dependant. But, I just needed to plot the real part. So I defined it as above in Global Expressions and plotted it easily!
I did so by writing like this: real(f) imag(f) where f is the desired function. For example, in my work, I wanted to plot a function which was frequency- dependant. But, I just needed to plot the real part. So I defined it as above in Global Expressions and plotted it easily!
Pu
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Posted: 1 decade ago 2012年3月2日 GMT-5 17:52
Thanks for ur reply!

But I don't get ur point... I mean define a function from complex data.
Thanks for ur reply! But I don't get ur point... I mean define a function from complex data.
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 2012年3月3日 GMT-5 05:03
Hi

you can always enter the ral and complex part separately and combine tem in the equations or with an anlytical function (do not forget to turn on the "can produce Complex data from real arguments)

Test it out with a simple eample to be 100% convinced ;)

I believe it worked also like that in 3.5
--
Good luck
Ivar
Hi you can always enter the ral and complex part separately and combine tem in the equations or with an anlytical function (do not forget to turn on the "can produce Complex data from real arguments) Test it out with a simple eample to be 100% convinced ;) I believe it worked also like that in 3.5 -- Good luck Ivar
Pu
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Posted: 1 decade ago 2012年3月3日 GMT-5 06:39
Thanks, Ivar!

I think this is the way to get around the problem.
Thanks, Ivar! I think this is the way to get around the problem.

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