angular Matrix and Upper-Triangular Matrix</a></li>
<li class="chapter" data-level="5.3.6" data-path="matrix-basics.html"><a href="matrix-basics.html#three-dimensions-matrix-tensor"><i class="fa fa-check"></i><b>5.3.6</b> Three Dimensions Matrix (Tensor)</a></li>
</ul></li>
</ul></li>
<li class="chapter" data-level="6" data-path="system-of-equations.html"><a href="system-of-equations.html"><i class="fa fa-check"></i><b>6</b> System of Equations</a>
<ul>
<li class="chapter" data-level="6.1" data-path="system