mathbfcal for LaTeX

Question

I typically typeset my documents in xelatex. With unicode-math and Cambria Math fonts a variety of math-styles are possible. This time the requirement is to use just pdflatex. How can I type (with STIX fonts preferably) in the \mathbfcal style? I am aware of this popular post, however, I cannot find any prescription there.

I am adding a minimal example

\documentclass[]{article}
\usepackage{stix}
\usepackage{amssymb,amsmath,mleftright,mathtools}
\begin{document}
    $\mathbfscr{G}$
\end{document}

It produces

,

which is the bold script style, not the bold calligraphic, which I am used to

For completeness, this is the solution using bm package

\documentclass[]{article}
\usepackage{stix}
\usepackage{amssymb,amsmath,mleftright,mathtools}
\usepackage{bm}
\begin{document}
$\bm{\mathcal{G}}$
$\mathcal{G}$
\end{document}

@Werner it gives me a message Too many symbol fonts declared. I have in the preamble: \usepackage{amssymb,amsmath,mleftright,mathtools} \usepackage{bm} \usepackage{stix} — yarchik, Jan 28 '21 at 17:04
Try with a different load order: \usepackage{stix} \usepackage{mleftright,mathtools} \usepackage{bm} — Werner, Jan 28 '21 at 17:14
since you have stix you have the bold symbols already and don't need bm \mathbfscr — David Carlisle, Jan 28 '21 at 17:42
@yarchik as you see from the comments it always helps if you show in the question a complete small document that shows the problem. — David Carlisle, Jan 28 '21 at 17:43

David Carlisle · Accepted Answer · 2021-01-28T18:35:14.410

2

You can declare the stix bold calligraphic

\documentclass[]{article}
\usepackage{stix}
\usepackage{amsmath,mleftright,mathtools}
\DeclareMathAlphabet\mathbfcal{LS2}{stixcal}{b}{n}
\begin{document}
    $\mathscr{G}$ $\mathcal{G}$ 
    $\mathbfscr{G}$ $\mathbfcal{G}$ 
\end{document}

You could use the cm one if you wish

\documentclass[]{article}
\usepackage{stix}
\usepackage{amsmath,mleftright,mathtools}
\DeclareMathAlphabet\mathbfcal{OMS}{cmsy}{b}{n}
\begin{document}
    $\mathscr{G}$ $\mathcal{G}$ 
    $\mathbfscr{G}$ $\mathbfcal{G}$ 
\end{document}

Although you might want to redefine the non bold one to use cm as well (or you may not)

\documentclass[]{article}
\usepackage{stix}
\usepackage{amsmath,mleftright,mathtools}
\DeclareMathAlphabet\mathcal{OMS}{cmsy}{m}{n}
\DeclareMathAlphabet\mathbfcal{OMS}{cmsy}{b}{n}
\begin{document}
    $\mathscr{G}$ $\mathcal{G}$ 
    $\mathbfscr{G}$ $\mathbfcal{G}$ 
\end{document}

edited Jan 28 '21 at 18:35

answered Jan 28 '21 at 18:20

David Carlisle

757,742

Just for completeness, can you please comment why in cm the bold calligraphic fonts are accessible with \mathbfcal whereas this is not the case for stix. – yarchik Jan 28 '21 at 18:33
@yarchik after the last edit I show that command accessing stix (in the first case) or cm (in the second and third cases) – David Carlisle Jan 28 '21 at 18:42
Thank you, this is a comprehensive answer. – yarchik Jan 28 '21 at 18:45

mathbfcal for LaTeX

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