mathematical diagrams
... that despite the long-established use of mathematical diagrams , going back to the Ancient Greeks, the scientific study of them has only recently begun?
... that despite the long-established use of <b id="mwDIk"><a href="./Mathematical_diagram" id="mwDIo" rel="mw:WikiLink" title="Mathematical diagram">mathematical diagrams</a></b> <i id="mwDIs">(<a href="./Voronoi_diagram" id="mwDIw" rel="mw:WikiLink" title="Voronoi diagram">Voronoi diagram</a> pictured)</i>, going back to the <a href="./Greek_mathematics" id="mwDI0" rel="mw:WikiLink" title="Greek mathematics">Ancient Greeks</a>, the scientific study of them has only recently begun?