code> - draw a corner or arc showing the angle between two vectors in 2D/3D</li>
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<code><a href="reference/pointOnLine.html">pointOnLine()</a></code> - position of a point along a line</li>
<li>
<code><a href="reference/vectors.html">vectors()</a></code>, <code><a href="reference/vectors3d.html">vectors3d()</a></code> - plot geometric vector diagrams in 2D/3D</li>
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<code><a href="reference/regvec3d.html">regvec3d()</a></code> - calculate and plot vectors representing a bivariate regression model, <c