I use xits-math.otf with `unicode-math`

with XeLaTeX.

It defines calligraphic upper case letters, but I need calligraphic lower case letters and especially numbers as well.

I tried this:

```
\documentclass{minimal}
\usepackage[math-style=TeX, bold-style=TeX]{unicode-math}
\usepackage{fontspec}
\setmathfont[StylisticSet=0]{xits-math.otf}
\setmathfont[range={\mathcal,\mathbfcal},StylisticSet=1]{xits-math.otf}
\newfontfamily\mathc[Path=/usr/share/texlive/texmf-dist/fonts/type1/public/mathabx-type1/]{mathc10.pfb}
\begin{document}
$\mathcal{mathcal ABC 123}$ \\
$\mathbfcal{mathbfcal ABC 123}$ \\
\mathc{mathc10.pbf abc ABC 123 !@\$\%\&}
\end{document}
```

This gives me the uppercase `\mathcal`

and `\mathbfcal`

letters, but as you can see, the lowercase letters and numbers, are just the standard italic and upright symbols, respectively.

In that example, I made an extra font definition using `fontspec`

to get access to the calligraphic font used with `mathabx`

. With that, I *can* access the symbols, but not by using `\mathcal`

, which is quite inconvenient, but the most inconvenient with this workaround, is that it doesn't work in math mode. I have to use `\text{\mathc{3}}`

to get a calligraphic '3', which is isn't really an option. Also, no bold calligraphic symbols, which I don't really need, but it feels like something's missing.

A while ago, I asked here how to get the "mathc10" font while using `MnSymbol`

. I don't use `MnSymbol`

anymore, but I tried the solution anyway:

```
\documentclass{minimal}
\usepackage[math-style=TeX, bold-style=TeX]{unicode-math}
\usepackage{fontspec}
\setmathfont[StylisticSet=0]{xits-math.otf}
\setmathfont[range={\mathcal,\mathbfcal},StylisticSet=1]{xits-math.otf}
\DeclareFontFamily{OT1}{mathc}{}
\DeclareFontShape{OT1}{mathc}{m}{n}{ <-> mathc10 }{}
\DeclareMathAlphabet\mathcal{OT1}{mathc}{m}{n}
\newfontfamily\mathc[Path=/usr/share/texlive/texmf-dist/fonts/type1/public/mathabx-type1/]{mathc10.pfb}
\begin{document}
$\mathcal{mathcal ABC 123}$ \\
$\mathbfcal{mathbfcal ABC 123}$ \\
\mathc{mathc10.pbf abc ABC 123 !@\$\%\&}
\end{document}
```

This kinda creates a new problem, while solving another: I have now access to calligraphic numbers with `\mathcal`

– although no bold version – but now the letters are gone.

I'm thinking I might need a different OTF font for the `\mathcal`

and `\mathbfcal`

ranges, but I don't know which one, and I don't know if that's actually the best solution.

Again, what I need is:

- calligraphic letters
- calligraphic numbers
- accessing them with
`\mathcal`

Nice to have:

- calligraphic bold version of letters and numbers

## Best Answer

You don't need to load the

`mathc10`

font with`fontspec`

; however it doesn't have a boldface companion, as already said elsewhere.