function f1 ()

  fa1 = @ (x, y) x / y;

  fa2 = @ (x, y, z) fa1 (x, y) + z;

  fa3 = @ (x) 3 * x;

  fa = @ (x, y, z) fa2 (x, y, z) + fa3 (x);

  f2 (fa);

endfunction
