This is outstanding. Thank you for the effort. Has there been any consideration of making a semantic version of the equations involved? The great thing about

This is outstanding. Thank you for the effort. Has there been any consideration of making a semantic version of the equations involved? The great thing about having this on the web, is I could easily see myself maintaining links in long calculations to various formulas as the authority. (Also: what's the font in the SVG images? It's great!)