MOD03_1-5.2_Intro_Python.ipynb

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    "# 1-5.2 Python Intro  \n",
    "## conditionals, type, and mathematics extended\n",
    "- conditionals: `elif`  \n",
    "- casting   \n",
    "- **basic math operators**  \n",
    "\n",
    "-----\n",
    "\n",
    "><font size=\"5\" color=\"#00A0B2\"  face=\"verdana\"> <B>Student will be able to</B></font>\n",
    "- code more than two choices using `elif`  \n",
    "- gather numeric input using type casting   \n",
    "- **perform subtraction, multiplication and division operations in code** \n"
   ]
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    "# &nbsp;\n",
    "<font size=\"6\" color=\"#00A0B2\"  face=\"verdana\"> <B>Concepts</B></font>\n",
    "## Math basic operators\n",
    "### `+` addition\n",
    "### `-` subtraction\n",
    "### `*` multiplication\n",
    "### `/` division  \n",
    "[![view video](https://iajupyterprodblobs.blob.core.windows.net/imagecontainer/common/play_video.png)]( http://edxinteractivepage.blob.core.windows.net/edxpages/f7cff1a7-5601-48a1-95a6-fd1fdfabd20e.html?details=[{\"src\":\"http://jupyternootbookwams.streaming.mediaservices.windows.net/5bc97f7e-3015-4178-ac20-371a5302def1/Unit1_Section5.2-Math-operators.ism/manifest\",\"type\":\"application/vnd.ms-sstr+xml\"}],[{\"src\":\"http://jupyternootbookwams.streaming.mediaservices.windows.net/5bc97f7e-3015-4178-ac20-371a5302def1/Unit1_Section5.2-Math-operators.vtt\",\"srclang\":\"en\",\"kind\":\"subtitles\",\"label\":\"english\"}])"
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   "source": [
    "# &nbsp;\n",
    "<font size=\"6\" color=\"#00A0B2\"  face=\"verdana\"> <B>Examples</B></font>"
   ]
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    "# [ ] review and run example\n",
    "print(\"3 + 5 =\",3 + 5)\n",
    "print(\"3 + 5 - 9 =\", 3 + 5 - 9)\n",
    "print(\"48/9 =\", 48/9)\n",
    "print(\"5*5 =\", 5*5)\n",
    "print(\"(14 - 8)*(19/4) =\", (14 - 8)*(19/4))"
   ]
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   "source": [
    "# [ ] review and run example - 'million_maker'\n",
    "def million_maker():\n",
    "    make_big = input(\"enter a non-decimal number you wish were bigger: \")\n",
    "    return int(make_big)*1000000\n",
    "\n",
    "print(\"Now you have\", million_maker())\n"
   ]
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   "source": [
    "# &nbsp;\n",
    "<font size=\"6\" color=\"#B24C00\"  face=\"verdana\"> <B>Task 1</B></font>\n",
    "## use math operators to solve the set of tasks below"
   ]
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   "source": [
    "# [ ] print the result of subtracting 15 from 43\n",
    "\n"
   ]
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   "cell_type": "code",
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   "source": [
    "# [ ] print the result of multiplying 15 and 43\n",
    "\n"
   ]
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   "cell_type": "code",
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   "source": [
    "# [ ] print the result of dividing 156 by 12\n",
    "\n"
   ]
  },
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   "cell_type": "code",
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   "source": [
    "# [ ] print the result of dividing 21 by 0.5\n",
    "\n"
   ]
  },
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   "cell_type": "code",
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   "source": [
    "# [ ] print the result of adding 111 plus 84 and then subtracting 45\n",
    "\n"
   ]
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  {
   "cell_type": "code",
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   "source": [
    "# [ ] print the result of adding 21 and 4 and then multiplying that sum by 4\n",
    "\n"
   ]
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   "source": [
    "# &nbsp;\n",
    "<font size=\"6\" color=\"#B24C00\"  face=\"verdana\"> <B>Task 2</B></font>\n",
    "## Program: Multiplying Calculator Function\n",
    "- define function **`multiply()`**, and within the function:\n",
    "  - gets user input() of 2 *strings* made of whole numbers\n",
    "  - cast the input to **`int()`**\n",
    "  - multiply the integers and **return** the equation with result as a **`str()`**\n",
    "    - **return** example \n",
    "     ```python\n",
    "     9 * 13 = 117\n",
    "     ```"
   ]
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   "cell_type": "code",
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   "source": [
    "# [ ] create and test multiply() function\n",
    "\n"
   ]
  },
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   "metadata": {
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   "source": [
    "# &nbsp;\n",
    "<font size=\"6\" color=\"#B24C00\"  face=\"verdana\"> <B>Task 3</B></font>\n",
    "## Project: Improved Multiplying Calculator Function\n",
    "### putting together conditionals, input casting and math\n",
    "- #### update the multiply() function to multiply or divide \n",
    "  - single parameter is **`operator`** with arguments of **`*`** or **`/`** operator\n",
    "  - default operator is \"*\" (multiply)\n",
    "  - **return** the result of multiplication or division\n",
    "  - if operator other than **`\"*\"`** or **`\"/\"`**  then **` return \"Invalid Operator\"`**"
   ]
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   "source": [
    "# [ ] create improved multiply() function and test with /, no argument, and an invalid operator ($)\n",
    "\n",
    "\n"
   ]
  },
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   "source": [
    "# &nbsp;\n",
    "<font size=\"6\" color=\"#B24C00\"  face=\"verdana\"> <B>Task 4</B></font>\n",
    "## Fix the Errors"
   ]
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   "source": [
    "# Review, run, fix \n",
    "student_name = input(\"enter name: \").capitalize()\n",
    "if student_name.startswith(\"F\"):\n",
    "    print(student_name,\"Congratulations, names starting with 'F' get to go first today!\")\n",
    "elif student_name.startswith(\"G\")\n",
    "    print(student_name,\"Congratulations, names starting with 'G' get to go second today!\")\n",
    "else:\n",
    "    print(student_name, \"please wait for students with names staring with 'F' and 'G' to go first today.\")\n",
    "\n"
   ]
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