Updated Notebook comments

Notebooks/41_casadi_gp_test.ipynb

@@ -75,6 +75,13 @@
     "## GP model"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Define the underlying function that will be modeled:"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 8,
@@ -108,6 +115,13 @@
     "})"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Sample `n` points and add measurement noise:"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 11,
@@ -142,6 +156,13 @@
     "Y_sampled = Y_sampled + noise"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Plot the function and the sampled points:"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 14,
@@ -167,6 +188,13 @@
     "plt.show()"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Train the GP"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 15,
@@ -362,6 +390,13 @@
     "## CasADi part"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Define the CasADi callback:"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 23,
@@ -1074,6 +1109,13 @@
     "grads"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Define another casadi callback, which directly uses the GPflow gradients:"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 29,