I am not sure you are doing anything wrong. I tried it and it appears that 
you are running up against an inefficiency in the integrator. More 
investigation would be necessary to figure out why it is taking so long.

I can reproduce a very long run time (>5 minutes, at which point I stopped 
the process).

Jonathan

On Wednesday, June 8, 2022 at 6:36:00 AM UTC-5 [email protected] wrote:

> Hello Everyone!
>
> I've been trying to use SymPy to derive thermodynamic properties but I'm 
> facing some problems with the integration. The problem in particular can be 
> seen in the attached figure and the simplified jupyter notebook.  
>
> [image: SymPy Integration Query.png]
>
> Instead, I can do the integration by manually separating the terms:
>
> [image: SymPy Integration Query - Manual Integration.png]
>
> For sure, there is something that I'm doing wrong!
> Thanks a lot!
> Andreu 
>

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