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Doesn't COMSOL accept complex interpolation functions?

Posted Mar 2, 2012, 5:40 p.m. EST 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 Mar 3, 2012, 6:39 a.m. EST
Kasra Pourang
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Posted: 1 decade ago Mar 2, 2012, 5:49 p.m. EST
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 Mar 2, 2012, 5:52 p.m. EST
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 Mar 3, 2012, 5:03 a.m. EST
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 Mar 3, 2012, 6:39 a.m. EST
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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