1 \documentclass{scrbook}
4 \usepackage{luatexja-fontspec}
9 %\usepackage{luatexja-fontspec}
11 \typeout{\meaning\@begindocumenthook}
13 \ifdefined\gtfamily\gtfamily\fi Ω
14 {\ExplSyntaxOn\makeatletter
15 \ttfamily\meaning\@begindocumenthook}
17 \SI{-2.5e-10}{mol.L^{-1}}\SI{1}{\micro\metre\angstrom\arcminute\arcsecond\ohm}
18 \vrule\SI{}{\ohm}\vrule