I would like to understand how Inactive and Activate function works because I'm disturbed.
If I need to inactivate a function and then re activate it how to do it ? I tried the following which doesn't work :
hh[x_] := x^2 hh 4 hh = Inactive[hh] Inactive[hh] hh Inactive[hh] hh = Activate[hh] Inactive[hh] hh Inactive[hh]
As you can see the function isn't reactivated as I would like it to be. I would like to understand why because it would help me to understand better how activate/inactivate functions work.