thods-for-Classification/ex4-3/" class="md-nav__link">
        Ex. 4.3
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    <li class="md-nav__item">
      <a href="../../4-Linear-Methods-for-Classification/ex4-4/" class="md-nav__link">
        Ex. 4.4
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    <li class="md-nav__item">
      <a href="../../4-Linear-Methods-for-Classification/ex4-5/" class="md-nav__link">
        Ex. 4.5
   