Dear community,
I am having some trouble with a probably a stupid problem, I looked carefully in the documentation but I did not be able to find a solution.
The problem is very easy to explain, if I define a function, for example:
f[x]:=a x.
Now, if I try using the Manipulate function in this way:
Manipulate[Plot[f[x],{x,0,3}],{a,0,1}],
the program shows me the Manipulate’s box, but without the drawing of the function!
But if I type:
Manipulate[Plot[a x,{x,0,3}],{a,0,1}]
it works fine. Obviously either the Plot function and the line that I used are just an example, Mathematica does not work with any function.
So, do I am making some error with the Mathematica syntax or does not Manipulate support the user defined functions?
Thanks you for the answer