lessons/Lesson 07 - Functions.ipynb

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   "source": [
    "# Lesson 7 - Functions"
   ]
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   "source": [
    "# Functions"
   ]
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   "source": [
    "def my_function():\n",
    "      print(\"Hello from a function\")\n",
    "\n",
    "my_function()"
   ]
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   "source": [
    "## Argument"
   ]
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   "source": [
    "def my_function(fname):\n",
    "      print(\"Name: \" + fname)\n",
    "\n",
    "my_function(\"Emil\")\n",
    "my_function(\"Tobias\")\n",
    "my_function(\"Linus\")"
   ]
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   "source": [
    "## Default Value"
   ]
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   "outputs": [],
   "source": [
    "def my_function(country = \"Norway\"):\n",
    "      print(\"I am from \" + country)\n",
    "\n",
    "my_function(\"Sweden\")\n",
    "my_function(\"India\")\n",
    "my_function()"
   ]
  },
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   "source": [
    "## List as a parametrer"
   ]
  },
  {
   "cell_type": "code",
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   "metadata": {},
   "outputs": [],
   "source": [
    "def my_function(food):\n",
    "    for x in food:\n",
    "        print(x)\n",
    "\n",
    "fruits = [\"apple\", \"banana\", \"cherry\"]\n",
    "\n",
    "my_function(fruits)"
   ]
  },
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   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Returned value"
   ]
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   "metadata": {},
   "outputs": [],
   "source": [
    "def my_function(x):\n",
    "      return 5 * x\n",
    "\n",
    "print(my_function(3))\n",
    "print(my_function(5))\n",
    "print(my_function(9))"
   ]
  },
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   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Recursion"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "def tri_recursion(k):\n",
    "    if(k>0):\n",
    "        result = k+tri_recursion(k-1)\n",
    "        print(result)\n",
    "    else:\n",
    "        result = 0\n",
    "    return result\n",
    "\n",
    "print(\"\\n\\nRecursion Example Results\")\n",
    "tri_recursion(6)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Task: \n",
    "Create function that remove every element on even position in given list."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "..."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Task: \n",
    "Create function that returns value of $\\begin{equation*}f(x) = x^3 + 2x + 2\\end{equation*}$"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "..."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Task: \n",
    "Create function that calcualtes fibonnaci sequence n-th element"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "..."
   ]
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