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Frequency Domain Methods
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Earlier in the course we encountered the Fourier transform,
which transforms a signal from the time to the frequency domain,
and before that, we applied z-transforms to solve recursion relations.
At the end of week 11, we apply Laplace transforms to transform
ordinatory differential equations into algebraic equations.

.. toctree::
   :maxdepth: 2

   lec32
   lec33
   lec34
   lec35