2. Jupyter Notebook Introduction.ipynb

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    "# The blue color outside the cell represents command mode.\n",
    "# And the green color indicates edit mode.\n",
    "# Press 'Esc' to get into command mode.\n",
    "# Press 'Enter' to go back into edit mode.\n",
    "# Press 'P' to view the list of all available commands."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
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   "source": [
    "# This is a coding cell.\n",
    "# Let's write your first Python program here.\n",
    "\n",
    "Name = input(\"Enter your name: \")\n",
    "print(\"Hello,\", Name)\n",
    "\n",
    "# Press 'Shift + Enter' to execute the cell."
   ]
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   "source": [
    "# Writing comments in a code cell can sometimes creates confusion. Jupyter notebook works both as a notebook and a coding console. \n",
    "# To write explanatory texts, you can use a markdown cell which enables you to format your comments well to create a more\n",
    "# readable code.\n",
    "\n",
    "# Let's now learn about markdown cells, then.\n",
    "# Press 'M' in command mode to convert a code cell to a Markdown cell."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "This is a Markdown Cell. Double click on a markdown cell or press 'Enter' to see how it's written. And again, press 'Shift + Enter' to execute the cell.\n",
    "\n",
    "Let's further learn about the various customizations in a markdown cell to create a more readable and understandable code."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# This is a title\n",
    "## This is a heading\n",
    "### This is a subheading\n",
    "#### This is as small as a heading can get\n",
    "##### The fifth hash makes it Italic. Wow!"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Formatting in Markdown cells\n",
    "\n",
    "### Emphasis\n",
    "\n",
    "__This will appear bold.__\n",
    "\n",
    "**So will this.**\n",
    "\n",
    "_Just one dash makes it italic._\n",
    "\n",
    "*And one star on either side as well.*\n",
    "\n",
    "***This one's both bold and italic.***"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Monospace Fonts\n",
    "\n",
    "Use a back single quotation mark (\\`) to get monospace fonts.\n",
    "\n",
    "`This text will appear in monospace font.`<br>\n",
    "`Python is a beautiful language.`\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Line Breaks\n",
    "\n",
    "Sometimes in the markdown cells, you don't get a line break where you want simply by pressing enter. In such cases use `<br>` to get a manual line break.\n",
    "\n",
    "I want a line break here.\n",
    "But I don't get it. :/\n",
    "<br>\n",
    "So I used a manual line break <br>\n",
    "There we go! :)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Indenting\n",
    "\n",
    "Use `>` to indent your text.\n",
    "\n",
    "This is the first line\n",
    "> This indents the second line.\n",
    ">> This further indents it.\n",
    ">>> And this goes on and on."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Bullets and Numbering\n",
    "\n",
    "-  A dash followed by two spaces, i.e. `'-  '` creates a bullet.\n",
    "    -  Pressing a tab before doing the above creates a sub-bullet."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "1. Start with a simple `1. ` (1 followed by a dot and a space) to get a numbered list.\n",
    "2. And keep doing it for further numbers.\n",
    "    1. Again, just a tab for the sub-bullet."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Coloring\n",
    " \n",
    "-  <font color = blue> This text will be blue. </font>\n",
    "-  <font color = Red> I hate this color! </font>"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Adding an Image\n",
    "\n",
    "You can add an image from the web by using `<img src = \"image_path\">`\n",
    "\n",
    "Example:\n",
    "<img src = \"https://theeducationdaily.com/wp-content/uploads/2021/02/download.png\">"
   ]
  },
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   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### LaTeX Equations\n",
    "\n",
    "Jupyter notebook also supports LaTeX equations. Use a `$` on either side to write a LaTeX equation.\n",
    "\n",
    "The below example is just a hypothetical equation to explain how you can write LaTeX equations in Jupyter notebook. \n",
    "<br>\n",
    "\n",
    "$(\\frac{a_1}{a_2} + \\frac{a_3}{a_4})^2 = a_5^3$\n",
    "\n",
    "$r{_{im}}$ = $-[\\frac{\\partial L(y_i,F(x_i))}{\\partial F(x_i)}]_{F(x)=F_{m-1}(x)} {for\\ } i=1,\\dots,n$\n",
    "\n",
    "Go through this [link](https://en.wikibooks.org/wiki/LaTeX/Mathematics) if you want to learn the LaTeX syntax. "
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Basic Commands\n",
    "\n",
    "That was all about markdown cells. Now let us take a look at the most useful commands that you require everyday while coding in the Jupyter notebook.\n",
    "\n",
    "#### Command Mode Shortcuts\n",
    "-  `Esc`: To go into command mode\n",
    "-  `Enter`: To go back to edit mode\n",
    "-  `M`: To convert a cell to a markdown cell\n",
    "-  `Y`: To convert a cell back to a code cell\n",
    "-  `A`: To insert new cell above\n",
    "-  `B`: To insert new cell below\n",
    "-  `D + D`: To delete cell\n",
    "-  `Z`: Undo last operation\n",
    "-  `F`: To find and replace on your code\n",
    "-  `Shift + Up/Down`: To select multiple cells\n",
    "-  `Space`: Scroll notebook downwards\n",
    "-  `Shift + Space`: Scroll notebook upwards\n",
    "\n",
    "#### Edit Mode Shortcuts\n",
    "-  `Shift + Enter`: To execute the code in the current cell and go to the next cell\n",
    "-  `Alt + Enter`: To execute the code in the current cell and insert new cell below\n",
    "-  `Shift + Tab`: To get a brief documentation of the object that you have just typed in the coding cell\n",
    "-  `Ctrl + Shift + -`: To split the cell at cursor\n",
    "-  `Shift + M`: To merge selected cells\n",
    "\n",
    "Apart from this, you can also use `H` to open the list of keyboard shortcuts and even add new shortcuts or customize the existing shorcuts according to your personal requirements."
   ]
  }
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