Asymptote is a powerful descriptive vector graphics language for technical drawing, inspired by MetaPost but with an improved C++-like syntax. Asymptote provides for figures the same high-quality typesetting that LaTeX does for scientific text.
LateXSL is a set of XSLT stylesheets that translates LaTeX embedded in a Web page into HTML, so that math typed directly into a web page as LaTeX is displayed as math in a viewer's browser. The stylesheets may be applied in the browser or by a server.