Hello,

Thank you for your answer,
my problem is exactly this one, even point 1 and 2 must be solved using Mathematica and I tried to look for something on the internet but I couldn't find much (or at least, due to my lack of Mathematica knowledge I couldn't figure it out)

In order to obtein the status of teacher in Switzerland I have to do some Maths test, and one of them is all about Mathematica. My problem is that I never used it, and it is not quite clear to me how to do it. One of the exercise that should help me to prepare is this one . https://postimg.org/image...