feat: a LOT of stuff (final report, examples, simulation of a single assert, move from node instances to node definitions, etc.)

exm/zelus/sincos/sincosz.zls

@@ -1,4 +1,4 @@
-
+(*
 let hybrid g () = (sin, cos) where
   rec der sin = cos init 0.0
   and der cos = -. sin init 1.0
@@ -15,3 +15,13 @@ let hybrid f () =
     print_float cos;
     print_newline ()
   ); ()
+*)
+let h = 0.01
+
+let node integr(x0, x') = (x) where
+	rec x = x0 -> pre(x +. x' *. h)
+
+let node sincos() = (now, sin, cos) where
+	rec sin = integr(0.0, cos)
+	and cos = integr(1.0, -. sin)
+	and now = integr(0.0, 1.0)