@jelgerjansen, I've just finished revising the code. Please let me know if there is anything else that needs improvement.
(Note that there is still an error in the CI, but it seems to be related to the branch not being up to date with the master. The error refers to the file IBPSA_Fluid_Movers_BaseClasses_Validation_EulerCurve.txt).

@amaccarini I added some other comments to the revision above. Once you've addressed these, I'll resolve those issues as well.

@jelgerjansen Thanks for the additional comments! I've just revised the code accordingly. Please let me know if there is anything else. If not, I will start working on the conflict that should be resolved before merging.

@EttoreZ, thanks a lot for your help in resolving the conflict!

@mwetter, there are two errors in the CI tests, but I can't figure out the cause. The errors seem to relate to models that I haven't made any changes to. Could you take a look?

@amaccarini : Yes, this way we can later remove it when CDL is ported to IBPSA without incurring a backward incompatible change.

@mwetter, @jelgerjansen: I removed the block from IBPSA.Utilities.Math and added its source code into the relevant BESTEST cases.

@amaccarini thanks! I noticed you also copied the full documentation section and revision history. Maybe you can replace all of this by referring to the corresponding model in the Modelica Buildings library in the documentation section?
@mwetter what do you think?
Nevertheless, I'll already approve all changes.

Michael to have a last look and then merge.