="string">'x'</span>); ylabel(<span class="string">'t'</span>); zlabel(<span class="string">'\Deltau'</span>);
    fprintf(<span class="string">'max error = %f\n'</span>, err);
<span class="keyword">end</span>

</pre><h2>Numerical Solution of M = 20 and dt = 0.001<a name="3"></a></h2><pre class="codeinput">solver_1_4_1( 20, 0.001 );
</pre><pre class="codeoutput">max error = 0.000265
</pre><img vspace="5" hspace="5" src="hw_1_4_2_01.png" alt=""> <img vspace="5" hspace="5" src="hw_1_4_2_02.png" alt=""> <img v