Take a look at the picture below:
Just what I'm going to use Greek
alphabet!
PDF link: https://unicode.org/charts/PDF/U0370.pdf
Take a look at the picture below:
Just what I'm going to use Greek
alphabet!
PDF link: https://unicode.org/charts/PDF/U0370.pdf
as for your other questions you just need suitable fonts. With luatex I get
\documentclass{article}
\usepackage{fontspec}
\setmainfont{TeX Gyre Termes}
\begin{document}
αβγ
\end{document}