Make a list with a function : makelist

### 2.37.35 Make a list with a function : `makelist`

`makelist` takes as argument a function `f`, the bounds `a,b` of an index variable and a step `s` (by default 1 or -1 depending on the bounds order).
`makelist` makes the list `[f(a),f(a+p)...f(a+k*p)]` with k such that : a<a+k*p ≤ b <a+(k+1)*p or a>a+k*p ≥ b >a+(k+1)*p.
Input :

`makelist(x->x```^```2,3,5)`

or

`makelist(x->x```^```2,3,5,1)`

or first define the function h(x)=x2 by `h(x):=x```^```2` then input

`makelist(h,3,5,1)`

Output :

`[9,16,25]`

Input :

`makelist(x->x```^```2,3,6,2)`

Output :

`[9,25]`

Warning!!! purge `x` if `x` is not symbolic.