shgrid</code> or <code>ndgrid</code> to generate a uniform grid of the rectangle $(0,1)\times (0,2)$ with size <code>h</code>.</p>
<p>Evaluate a function <code>f(x,y)</code> on this uniform grid. Plot it using <code>mesh</code> or <code>surf</code>.</p>

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<h2 id="Step-2:-Matrix-Vector-Product">Step 2: Matri