Today, I want to show you a neat trick to create scatter plots with a large number of points. Of course, it is possible to use JSXGraph points, but this might be overkill and need too much resources. A more efficient approach is to use the JSXGraph curve object: For each point we simply add two coordinate entries and one NaN entry. The NaN entry will interrupt the line stroke. You can see it at https://jsxgraph.org/wiki/index.php/Scatter_plot.
Enjoy, Alfred