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    "# Packages and NumPy\n",
    "\n",
    "```{admonition} Interactive page\n",
    ":class: warning, dropdown\n",
    "This is an interactive book page. Press launch button at the top right side.\n",
    "```\n",
    "\n",
    "In this chapter, we will first learn what Python **packages** are, why they are useful, and how to use them in practice. \n",
    "We will next focus on NumPy, a fundamental package for **scientific computing** in Python, and explore how to use it in nanobiology.\n",
    "\n",
    "```{admonition} Just for fun    \n",
    ":class: note\n",
    "You will learn on the next page what the `import` function does. For now, if you wish, run the code cell below and check its output, just for fun. If it seems random, ask AI to get some context.\n",
    "```\n"
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    "import this"
   ]
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    "\n",
    "```{figure} images/map7.png\n",
    "---\n",
    "height: 400px\n",
    "name:\n",
    "---\n",
    "```"
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