I had exactly this issue when I was tutoring a group of Computability
Theory students. I found that only GNU Pic gave good results. You can
embed pic inline in LaTeX documents and have it render properly but
it’s probably better results to use a Makefile and run pic/groff to
get EPS files.

check http://advogato.org/person/dto/diary.html?start=67

P.S. thanks for all the planner-mode help… I am up and running!!

E-Mail from David O’Toole