If I try like this

F := sin(x);

G := cos(x);

f := proc (x) options operator, arrow; F end proc;

g := proc (x) options operator, arrow; G end proc;

h := proc (x) options operator, arrow; f(g(x)) end proc;

h(x)

but it doesn't work.

PS: I want to make my own function Compostiton(F,G)

Hi everybody?

I have a small bug when create a maplet for a simple logical example.

> myMaplet := Maplet(Window(title="Logic Test",
[
["A : ", TextField['A'](5),
 "B : ", TextField['B'](5)],
["A = B?", TextField['TF'](10)],
[Button['EX']("Do", onclick=ACT),
 Button['QT']("Quit", enabled=true, Shutdown())]
 ]),
Action[ACT](Evaluate('TF'=evalb(eval(A=B))))
):
>Maplets[Display](myMaplet);