Use new simple control diagram functionality to develop simple Dahlin simulation

Author: alchemyst

2_Control/6_Discrete_control_and_analysis/Dahlin controller.ipynb

@@ -9,6 +9,13 @@
     "We will replicate the controller output in figure 17.11a. This notebook has a [video commentary](https://youtu.be/7c-f-6pMgt4)."
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "*Note* I am replicating these results using analytic methods to show that the artefacts are not numerical but rather fundamental to the calculations. If you simply want to simulate the action of a discrete controller on a continuous system, have a look at the [Simple discrete controller simulation](Simple%20discrete%20controller%20simulation) notebook."
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 1,
@@ -655,9 +662,9 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.3"
+   "version": "3.7.6"
   }
  },
  "nbformat": 4,
- "nbformat_minor": 2
+ "nbformat_minor": 4
 }