This has been discussed many time here and on other forums, but I still don't know how to get Jupyter to print Greek letters when I convert the notebook to PDF. Interestingly, if converted to HTML, everything is fine.

When converted to PDF:

When converted to HTML:

I've tried using CLI pandoc and tweaking the settings (e.g., changing the font or using xelatex instead of pdflatex), but nothing seems to work. And since these Greek letters are part of my code, I can't just replace them with something that's known to Latex.