updated exercise 21

exercise_21_python_recap.ipynb

@@ -20,7 +20,7 @@
    "metadata": {},
    "source": [
     "## Exercises\n",
-    "#### Print your name\n",
+    "#### 1. Print your name\n",
     "\n",
     "Save your name in all lower-case letters to a variable, and print a capitalized version of it. Protip: [Google for \"How to capitalize a string in python\"](http://www.google.com/search?q=how+to+capitalize+a+string+in+python). This works for almost any programming problem - someone will have had the same issue before!"
    ]
@@ -36,7 +36,90 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "#### Functions, NumPy, and Matplotlib\n",
+    "#### 2. Print all the vowels in your name"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### 3. Print all the words in the string \"Hello how are you?\" separately on the screen "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### 4. Dictionary\n",
+    "\n",
+    "Create a dictionary where names are linked to nationalities. Ask the user for its name and print \"This is *name*. She/ He is *nationality*\" or \"Sorry we could not find you in the database.\""
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### 5. Siblings\n",
+    "Ask the user for it’s name and number of siblings. Print on screen “*name* has no siblings.”, “*name* has 1 sibling.” or “*name* has *number of* siblings.” depending on the input.\n",
+    "Hint: Ask to separate input by commas"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### 6. Fibonacci sequence\n",
+    "Write a function that displays the n first terms of the Fibonacci sequence, defined by\n",
+    "\n",
+    "U_0 = 0\n",
+    "\n",
+    "U_1 = 1\n",
+    "\n",
+    "U_n+2 = U_n+1 + U_n\n",
+    "\n",
+    "Output: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ..."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### 7. Functions, NumPy, and Matplotlib\n",
     "\n",
     "A. Write a function that takes a NumPy array `x` and `a`, `b`, and `c` and returns\n",
     "\n",
@@ -58,7 +141,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "#### 99 Bottles of Beer\n",
+    "#### 8. 99 Bottles of Beer\n",
     "\n",
     "*(stolen from http://www.ling.gu.se/~lager/python_exercises.html)*\n",
     "\n",
@@ -86,7 +169,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "#### Ceasar Cipher\n",
+    "#### 9. Ceasar Cipher\n",
     "\n",
     "*(stolen from http://www.ling.gu.se/~lager/python_exercises.html)*\n",
     "\n",
@@ -111,6 +194,15 @@
     "**BONUS:** Write an encoder!"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### 10. Sum of numbers\n",
+    "\n",
+    "Write a program that asks the user for a number n and prints the sum of the numbers 1 to n. But: only multiples of three or five are considered in the sum, e.g. 3, 5, 6, 9, 10, 12, 15 for n=17"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,