bugs and reports: January 2020

[Dirk.nl]

Hi Cyrille,
I think the Function App can’t evaluate/handle/manipulate (what is right English word for this?) the derivate of a function.
This is also apparent from an earlier post about not being able to find an extremum of a derivate.
If you first solve this with CAS and copy the result to the Function App, you will succeed.
This is not a problem from the last update, it has (in my opinion) always existed.