 matrix division. The algebraic solver becomes handy when we want
to solve nonlinear equations.</p>
<p>As an illustrative example, we consider the following nonlinear system of two equations
with two unknowns:</p>
<p><span class="math display">\[\begin{align*}
  z_1 &amp;= y_1 - \theta_1 \\
  z_2 &amp;= y_1 y_2 + \theta_2
\end{align*}\]</span></p>
<p>Our goal is to simultaneously solve all equations for
<span class="math inline">\(y_1\)</span> and <span class="math inline">\(y_2\)</span>, such that the vect