gebra.html#matrix-addition-subtraction-and-multiplication"><i class="fa fa-check"></i><b>5.1.1</b> Matrix addition, subtraction, and multiplication</a></li>
<li class="chapter" data-level="5.1.2" data-path="a-quick-review-of-some-basic-concepts-in-matrix-algebra.html"><a href="a-quick-review-of-some-basic-concepts-in-matrix-algebra.html#diagonal-matrix-and-identity-matrix"><i class="fa fa-check"></i><b>5.1.2</b> Diagonal matrix and identity matrix</a></li>
<li class="chapter" data-level="5.1.3" data-path="a