%%
%% The LaTeX Companion, 3ed
%%
%% Example 12-4-2 on page II-256 in "Math alphabets revisited".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{75.0pt}
% typeset with lualatex
%StartShownPreambleCommands
\usepackage{amsmath,unicode-math}
%StopShownPreambleCommands

\begin{document}
\begin{gather*}       a,b,X,Y,Z,\pi,\Gamma \\ % default
 \symrm{a},\symbf{b},\symsf{Y},X,\symtt{Z},\symrm{\pi},\symit{\Gamma} \\
 \symbfsfit{a},\symbfit{b},X,\symbfsfit{Y},\symbfsfup{Z},
                                       \symbfup{\pi},\symbfit{\Gamma} \\
 \symfrak{a},\symbffrak{b},\symbb{X},\symscr{Y},\symbfscr{Z},
                                       \symbfit{\pi},\symbfsf{\Gamma} \\
 \symbb{0},\symbb{1},\symbb{2},\symbb{3},\dots,
              \symbfsfup{7},\symbfsfup{8},\symbfsfup{9}   \end{gather*}
\end{document}