Prime function app question

[robmio]

(09-02-2022 04:48 PM)C.Ret Wrote:  

(09-02-2022 01:02 AM)Coacht95 Wrote:  Any suggestions?

You may have made a syntax error somewhere.

Using the same F1(X)=2*X-X²/15 as robmio, I directly (without any CAS extension) get the integral, first and second derivative function without any issue :

Thanks for the suggestion. I thought I had to use the CAS instruction, being an itegral, but no.
Sincerely, robmio (Roberto Mioni)