04/06/2007 Joe Chuma
* New ELLIPSE command can be used to populate an ellipse given the major- and minor-axes, centre, and angle; or it can be used to fit an ellipse to a set of data points. The Help files have also been updated.
* New POLYGON command takes the coordinates for the vertices of a polygon and some data coordinates, and returns a vector indicating which
data points are inside/outside the polygon. The Help files have also been updated.
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