Fehlerhaftes Drehen in 3D

This is weird ;)

I guess that there's something wrong with the use of u as a variable.

If I use x instead, it works correctly. I'm addressing this issue to the developers.

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Note for the devs: (I've used the latest v.5 as the user did)

f(x) is created and rotated correctly. Nothing changes if I recalculate the whole worksheet

g(u) is defined exactly as f(x). It displays correctly, but the parameter t used by GeoGebra for rotation (Rotate cmd) above x axis changes whenever I reopen the file or recalculate the worksheet with a Ctrl+R.

Further investigation:

I've deleted the g(u) function from AV and recreated the same in CAS with a definition Copy/Paste - so no changes, basically.

It sounds to be working

BUT

If I create in CAS another function (same definition, copy/paste again, just a new variable v instead), there is no possibility to show the function in AV (no visibility dot in the related CAS cell).

Its rotation, obtained as above with Rotate(h,180°,xaxis) is shown algebraically in CAS, the visibility dot is available in CAS, but not selectable.

I've not assigned a name to the rotated curves in CAS. Please note the different definitions shown for the rotated curves in CAS, shown as output of my command after pressing Enter

Uhm...

Hi Simona,

thanks a lot for your response! However, if I use the variable x instead of the parameter u, I get exactly the same (unsatisfying) result as the attached screen shot shows ...

Kind regards, Ruben

Please post your .ggb file