PlantUML supports math markup as described on http://plantuml.com/ascii-math.
Using the first example given on the page
@startuml
:<math>int_0^1f(x)dx</math>;
:<math>x^2+y_1+z_12^34</math>;
note right
Try also
<math>d/dxf(x)=lim_(h->0)(f(x+h)-f(x))/h</math>
<latex>P(y|\mathbf{x}) \mbox{ or } f(\mathbf{x})+\epsilon</latex>
end note
@enduml
and running plantuml -teps works but renders an eps file in which the actual math images are still bitmaps instead of vector graphics. The other parts such as the bounding boxes, arrows and the non-math text are vectorized. Exporting to svg with -tsvg does generate vectorized math images. Is it possible to change this for the eps output so that the math images are also vectorized? The current issue is that the resulting eps is only partially vectorized which results in ugly combinations of clear and unclear images when, for example, zooming in.