I know lots of you use Emacs and org mode to prepare scholarly books and papers, either doing the HTML or, more probably, the Latex export. Question: Let's say I want to produce a math text with Emacs/org-mode/Latex. What is the best way to make diagrams and images? I've seen things like Inkscape and LibreOffice Draw. But then there is Gnuplot and Tikz. Yes, what Tikz does seems optimal, but the learning curve is a year's sabbatical. Just wondering what you people are using to do your images.
LB