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    "# Hello"
   ]
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    "\"\"\"\n",
    "        Yet another version to plot cos in the range 0 -> 4pi using Numpy\n",
    "        (the numerical package) to do all the work\n",
    "\n",
    "        This is beyond this course, but you will learn Numpy next year.\n",
    "\"\"\"\n",
    "import matplotlib.pyplot as plt\n",
    "import numpy as np\n",
    "\n",
    "def main():\n",
    "\n",
    "    thetaData = np.linspace(0,4.0*np.pi,300)     # Create a linear space from 0->4pi with 300 points\n",
    "\n",
    "    #             Use numpy functions np.degrees and np.cos that both return numpy arrays\n",
    "    plt.plot(np.degrees(thetaData),np.cos(thetaData))\n",
    "    #              Add the title\n",
    "    plt.title(\"Cos Plot using Numpy\")\n",
    "    plt.xlabel(\"Angle in degrees\")\n",
    "    plt.ylabel(\"Cos\")\n",
    "    plt.show()    # Do the actual plot\n",
    "\n",
    "main()\n"
   ]
  }
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