texmath-0.6.7: tests/writers/double-struck.tex
\begin{array}{l}
\mathrm{0123456789} \\
\mathrm{ABCDEFGHIJKLMNOPQRSTUVWXYZ} \\
\mathrm{abcdefghijklmnopqrstuvwxyz} \\
\end{array}\begin{array}{l}
\mathrm{0123456789} \\
\mathrm{ABCDEFGHIJKLMNOPQRSTUVWXYZ} \\
\mathrm{abcdefghijklmnopqrstuvwxyz} \\
\end{array}