Font testing

\mathcal{ABCDEFGHIJKLMNOPQRSTUVWXYZ}
\mathscr{ABCDEFGHIJKLMNOPQRSTUVWXYZ}
\mathrm{ABCDEFGHIJKLMNOPQRSTUVWXYZ}
\mathrm{abcdefghijklmnopqrstuvwxyz}
\mathbf{ABCDEFGHIJKLMNOPQRSTUVWXYZ}
\mathbf{abcdefghijklmnopqrstuvwxyz}
\mathbb{ABCDEFGHIJKLMNOPQRSTUVWXYZ}
\mathit{ABCDEFGHIJKLMNOPQRSTUVWXYZ}
\mathit{abcdefghijklmnopqrstuvwxyz}
\mathfrak{ABCDEFGHIJKLMNOPQRSTUVWXYZ}
\mathfrak{abcdefghijklmnopqrstuvwxyz}
\mathsf{ABCDEFGHIJKLMNOPQRSTUVWXYZ}
\mathsf{abcdefghijklmnopqrstuvwxyz}
\mathtt{ABCDEFGHIJKLMNOPQRSTUVWXYZ}
\mathtt{abcdefghijklmnopqrstuvwxyz}