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The PLOT software always adds a new worksheet to
the active workbook and uses this new sheet for its calculations and the final
graph.
In creating the data for the graph, it starts by
checking the function at some number of x values. How many values it uses
to start is controlled by the dialog box entry 'minimum data points to start
with.' It subsequently doubles the number of data points it uses.
However, it does not allocate these new data points in an equidistant fashion as
the first time around. Instead it uses the information about the curvature
of the graph at each of earlier data points and uses more points in the areas
where the curvature is greater.
The program keeps on doubling the data points it
uses until it has more than the number specified in the dialog box entry
'Maximum (to stop with).'
It creates the graph as an embedded chart object
in the new worksheet added to the workbook.
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