 style="margin-left: 38px;">
<div class="code" style="width:562px;"><code>t=0:pi/40:8*pi;<br>
plot3(20*t,cos(t),sin(t))<br>
axis([0,600,-1.5,1.5,-1.5,1.5])<br>
grid <span style="color: rgb(160, 32, 240);">on</span>, view(35,40)<br>
hold <span style="color: rgb(160, 32, 240);">on</span><br>
arrow3([0,0,0],[600,0,0],<span style="color: rgb(160, 32, 240);">''</span>,2,[],0)<br>
hold <span style="color: rgb(160, 32, 240);">off</span><br>
</code>
</div>
<br>
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