8

I have a paper in which I originally used mathit, bold mathit, mathcal and bold mathcal to distinguish various types of entities. Reviewing the paper on-screen it appears that \mathit{C} and \mathcal{C} are very similar in appearance. My first thought was to use sans-serif in place of the default font, but LaTeX doesn't let you combine \mathit and \mathsf.

The pdflatex font tables are close to full, and XeTeX is not an option since I can't control the compilation process of arXiv or other publishers. Is there a way to get italic sans-serif without loading additional fonts, and is there an alternative way to distinguish the entities for which I currently use bold, default, calligraphic and bold calligraphic. Note: I don't load bold fonts; I use \bm.

\documentclass{article}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{bm}
\usepackage[colorlinks,hidelinks]{hyperref}
\usepackage{cleveref}
\usepackage{showlabels}
\showlabels{cite}
\showlabels{cref}
\showlabels{crefrange}

\begin{document}

 $C$ default

 $\mathit C$ mathit

 $\mathcal C$ mathcal

 $\mathsf{C}$ mathsf

 $\bm C$ bm default

 $\bm{\mathcal{C}}$ bm mathcal

 $\bm{\mathit{\mathsf{C}}}$ bm mathit mathsf

\end{document}

I attempted to resolve this based on a suggestion by egreg, but the weight of the italic sans-serif was heavier than the weight of normal sans-serif. After I fixed a typo it worked.

\documentclass{article}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{bm}
\usepackage[colorlinks,hidelinks]{hyperref}
\usepackage{cleveref}
\usepackage{showlabels}
\showlabels{cite}
\showlabels{cref}
\showlabels{crefrange}

\DeclareMathAlphabet{\mathsfbd}{T1}{\sfdefault}{\bfdefault}{\itdefault}
\SetMathAlphabet{\mathsfbd}{bold}{T1}{\sfdefault}{\bfdefault}{\itdefault}

\DeclareMathAlphabet{\mathsfit}{T1}{\sfdefault}{}{\itdefault}
\SetMathAlphabet{\mathsfit}{normal}{T1}{\sfdefault}{}{\itdefault}

\DeclareMathAlphabet{\mathsfbdit}{T1}{\sfdefault}{\bfdefault}{\itdefault}
\SetMathAlphabet{\mathsfbdit}{bold}{T1}{\sfdefault}{\bfdefault}{\itdefault}

\begin{document}

 $C$ default

 $\mathit C$ mathit

 $\mathcal C$ mathcal

 $\mathsf{C}$ mathsf

$\mathsfbd{C}$ mathsfbd

$\mathsfbdit{C}$ mathsfbdit

$\mathsfit{C}$ mathsfit

 $\bm C$ bm default

 $\bm{\mathcal{C}}$ bm mathcal

 $\bm{\mathit{\mathsf{C}}}$ bm mathit mathsf

$\bm{\mathsf{C}}$ bm mathsf

$\bm{\mathsfbd{C}}$ bm mathsfbd

$\bm{\mathsfit{C}}$ bm mathsfit

$\bm{\mathsfbdit{C}}$ bm mathsfbdit

\end{document}
10

Math alphabets commands such as \mathit and \mathsf are not “cumulative”. You have to allocate a specific math alphabet.

\documentclass{article}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{bm}

\DeclareMathAlphabet{\mathsfit}{T1}{\sfdefault}{\mddefault}{\sldefault}
\SetMathAlphabet{\mathsfit}{bold}{T1}{\sfdefault}{\bfdefault}{\sldefault}

\begin{document}

$C$ default

$\mathit{C}$ mathit

$\mathcal{C}$ mathcal

$\mathsf{C}$ mathsf

$\mathsfit{C}$ mathsfit

$\bm{C}$ bm default

$\bm{\mathcal{C}}$ bm mathcal

$\bm{\mathsf{C}}$ bm mathsf

$\bm{\mathsfit{C}}$ bm mathsfit

\end{document}

enter image description here

  • Why {bold}? I'm looking for normal weight italic sns-serif unless I apply BM to it. Possibly I should have declarations for mathsift and mathsfitbd and skip the bm. What would that look like? Thanks. – shmuel Jun 1 '18 at 15:22
  • @shmuel Don't you get medium weight sans serif italic with \mathsfit{C} and bold sans serif italic with \bm{\mathsfit{C}}? – egreg Jun 1 '18 at 15:54
  • Yes, I get medium weight sans serif italic with \mathsfit{C}, but I want the same weight as \mathsf(C). I tried \SetMathAlphabet{\mathsfit}{normal}{T1}{\sfdefault}{}{\itdefault}, but that still gave me medium weight. I've updated my MWE to show the failed attempt. – shmuel Jun 4 '18 at 19:00
  • @shmuel I don't understand: with \mathsf{C} and \mathsfit{C} the weight is exactly the same. – egreg Jun 4 '18 at 19:03
  • All I know is that when I compile the MWE with pdflatex, the \mathsf{C} is lighter than the \mathsfit{C}. I can send you, e.g., the PDF file, if that would help. – shmuel Jun 4 '18 at 20:25
2

Depending whether you are only seeking text characters, you could use the math \text command:

  \[ \text{\sffamily\itshape  ABC abc}\]

enter image description here

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