<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>
axis <span style="color: rgb(160, 32, 240);">normal</span><br>
</code>
</div>
<br>
<table style="text-align: left; width: 560px;" border="0"
 cellpadding="0">
  <caption align="bottom">Figure 3.<br>
  </caption><tbody>
    <tr>
      <td style="padding:0px;"><img src="fig03.png" alt="Figure 3." tit