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   "source": [
    "###  Homework 5 assignment."
   ]
  },
  {
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   "metadata": {},
   "source": [
    "### Code compilation and Makefile\n",
    "\n",
    "Download ```FFT_serial.tgz``` from\n",
    "https://linuxcourse.rutgers.edu/summer2023/html/HW/FFT_serial.tgz\n",
    "\n",
    "- Untar the archive. \n",
    "- Compile the source code into binary file ```fft.x```\n",
    "- Create static library ```libcfft.a``` from ```cffti.c```, ```ccopy.c```, ```cfft2.c```, and ```step.c``` files.\n",
    "- Develop Makefile that include targets for ```fft.x```, and library ```libcfft.a```\n",
    "\n"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "075e51ff",
   "metadata": {},
   "source": [
    "### Command grep and regular expressions\n",
    "\n",
    "How many times is function ```cfft2``` called in file ```fft_serial.c```? "
   ]
  },
  {
   "cell_type": "markdown",
   "id": "5fdcb4dc",
   "metadata": {},
   "source": [
    "### Python script\n",
    "\n",
    "Develop a python script that accomplishes the same task as command grep above."
   ]
  }
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