Fix labeling

Author: ggorman

notebook/Lecture-3-Introduction-to-programming-for-geoscientists-Solutions.ipynb

@@ -1,6 +1,7 @@
 {
  "metadata": {
-  "name": "Lecture-3-Introduction-to-programming-for-geoscientists-Solutions"
+  "name": "",
+  "signature": "sha256:438038df1bfccee5e3a89031c69f3fbaa0fc59576b81919b4e77836101642597"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -27,7 +28,7 @@
      "cell_type": "markdown",
      "metadata": {},
      "source": [
-      "* **Make an interactive program**</br>\n",
+      "* **Exercise 1: Make an interactive program**</br>\n",
       "Make a program that (i) asks the user for a temperature in Fahrenheit degrees and reads the number; (ii) computes the corresponding temperature in Celsius degrees; and (iii) prints out the temperature in the Celsius scale."
      ]
     },
@@ -49,33 +50,7 @@
      "cell_type": "markdown",
      "metadata": {},
      "source": [
-      "* **Use exceptions**</br>\n",
-      "Extend the program from the previous exercise with a try-except block to handle the potential error that the user enters nothing (or invalid data such as a letter) for the Fahrenheit temperature."
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "# Use exceptions\n",
-      "\n",
-      "try: # Section of code to try\n",
-      "    F = float(raw_input(\"C=? \")) # Input F becomes a float\n",
-      "except: # Code executed if there is an error in input (e.g. no input, a letter, etc.)\n",
-      "    print \"ERROR: You must enter a valid Fahrenheit temperature\" # Error message to user\n",
-      "\n",
-      "C = (F - 32)*(5./9.) # Computes temperature in Celsius\n",
-      "print \"%.1f degrees Fahrenheit is %.1f degrees Celsius\" % (F, C) # Prints computed value"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": []
-    },
-    {
-     "cell_type": "markdown",
-     "metadata": {},
-     "source": [
-      "* **Prompt the user for input to a formula**</br>\n",
+      "* **Exercise 2: Prompt the user for input to a formula**</br>\n",
       "Consider the simplest program for evaluting the formula $y(t) = v_0 t \u2212 0.5gt^2$:"
      ]
     },
@@ -129,7 +104,33 @@
      "cell_type": "markdown",
      "metadata": {},
      "source": [
-      "* **Make the program safer**</br>\n",
+      "* **Exercise 3 - Use exceptions**</br>\n",
+      "Extend the program from the previous exercise with a try-except block to handle the potential error that the user enters nothing (or invalid data such as a letter) for the Fahrenheit temperature."
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# Use exceptions\n",
+      "\n",
+      "try: # Section of code to try\n",
+      "    F = float(raw_input(\"C=? \")) # Input F becomes a float\n",
+      "except: # Code executed if there is an error in input (e.g. no input, a letter, etc.)\n",
+      "    print \"ERROR: You must enter a valid Fahrenheit temperature\" # Error message to user\n",
+      "\n",
+      "C = (F - 32)*(5./9.) # Computes temperature in Celsius\n",
+      "print \"%.1f degrees Fahrenheit is %.1f degrees Celsius\" % (F, C) # Prints computed value"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": []
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "* **Exercise 4a: Make the program safer**</br>\n",
       "Extend the program from the previous exercise to include exception handling such that missing (or invalid) values for *t* and *v0* are detected. In the *except ValueError* block, use the raw_input function to ask the user for input data once more."
      ]
     },
@@ -160,7 +161,7 @@
      "cell_type": "markdown",
      "metadata": {},
      "source": [
-      "* **Test more in the program**</br>\n",
+      "* **Exercise 4b: Test more in the program**</br>\n",
       "Test if the *t* value read in the program from the previous exercise lies between $0$ and ${2v_0}/{g}$. If not, print a message and abort execution."
      ]
     },
@@ -197,7 +198,7 @@
      "cell_type": "markdown",
      "metadata": {},
      "source": [
-      "* **Raise an exception**</br>\n",
+      "* **Exercise 4c: Raise an exception**</br>\n",
       "Instead of printing an error message and aborting the program explicitly, raise a *ValueError* exception in the *if* test on legal *t* values in the program from the previous exercise. Include the legal interval for *t* in the exception message."
      ]
     },
@@ -233,7 +234,7 @@
      "cell_type": "markdown",
      "metadata": {},
      "source": [
-      "* **Compute the distance it takes to stop a car**</br>\n",
+      "* **Exercise 5: Compute the distance it takes to stop a car**</br>\n",
       "A car driver, driving at velocity $v_0$, suddenly puts on the brake. What braking distance $d$ is needed to stop the car? One can derive, from basic physics, that</br>\n",
       "$d = 0.5\\frac{v_0^2}{\\mu g}$</br>\n",
       "Make a program for computing $d$ using the above formula when the initial car velocity $v_0$ and the friction coefficient $\\mu$ are provided via the raw_input function. Run the\n",