using System;
using System.Console;
using System.Math;
using Nemerle.Collections.NCollectionsExtensions;

module FirstClassFunc
{
    Main() : void
    {
        def cube = fun (x) {x * x * x};
        def croot = fun (x) {Pow(x, 1.0/3.0)};
        def compose = fun(f, g) {fun (x) {f(g(x))}};
        def funcs = [Sin, Cos, cube];
        def ifuncs = [Asin, Acos, croot];
        WriteLine($[compose(f, g)(0.5) | (f, g) in ZipLazy(funcs, ifuncs)]);
    }
}