ng the default path <code>C:\cygwin64</code>
</li>
<li>When you run Cygwin’s setup.exe, you should also install all <em>fftw3</em> packages. (fftw3 is a CMTK dependency which provides fast Fourier transform functions)</li>
<li>Download <code>CMTK-3.3.1-CYGWIN-x86_64.tar.gz</code> to the cygwin folder (<code>C:\cygwin64</code>)</li>
<li>Start a Cygwin terminal and go to the root directory with the command <code>cd /</code> (this is the same place as <code>C:\cygwin64</code> in the Windows file system).</li