to the top of the arc, like
this:</p>

<p align="center" style="margin-top: 1em">Figure 3-5:
Result of <b>arc; move;</b></p>

<p style="margin-top: 1em">This is because drawing an arc
changes the default direction to the one its exit end points
at. To reinforce this point, consider:</p>

<p align="center" style="margin-top: 1em">Figure 3-6:
Result of <b>arc cw; move;</b></p>

<p style="margin-top: 1em">All we&rsquo;ve done differently
here is specify &ldquo;cw&rdquo; for a clockwise arc
(&ldquo;ccw&rdquo; s