yword">val</span> discrete_lyapunov : 
  <span><span class="optlabel">?solver</span>:<span>[ `default <span>| `direct</span> <span>| `bilinear</span> ]</span> <span class="arrow">&#45;&gt;</span></span>
  <span><a href="#type-mat">mat</a> <span class="arrow">&#45;&gt;</span></span>
  <span><a href="#type-mat">mat</a> <span class="arrow">&#45;&gt;</span></span>
  <a href="#type-mat">mat</a></span></code></div></div></details></div><div class="odoc-include"><details open="open"><summary class="spec include"><