add another problem to the notebook

zingale · zingale · commit 3965dcef1b3f · 2018-02-19T14:25:38.000-05:00
diff --git a/lectures/01-python/w5-python-more-examples.ipynb b/lectures/01-python/w5-python-more-examples.ipynb
@@ -71,7 +71,30 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## Exercise 4: Calendar events\n",
+    "## Exercise 4: Math practice\n",
+    "\n",
+    "We want to make a simple table of trigonometric functions for different angles.  Write a code that outputs in columns, the following data:\n",
+    "```\n",
+    "angle (degrees)    angle (radians)     sin(angle)     cos(angle)    sin(angle)**2 + cos(angle)**2\n",
+    "```\n",
+    "\n",
+    "For all angles spaced 30 degrees apart in the range 0 to 360 degrees.\n",
+    "\n",
+    "Keep in mind that the trig functions expect the input in radians."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Exercise 5: Calendar events\n",
     "\n",
     "We want to keep a schedule of events.  We will do this by creating a class called `Day`.  It is sketched out below.  A `Day` holds a list of events and has methods that allow you to add an delete events.  Our events will be instances of a class `Event`, which holds the time, location, and description of the event.\n",
     "\n",
