[Tex/LaTex] small capital letters in math environment

math-mode

I would like to use small capital letters as variables for points in geometry (I want to reserve normal capitals for relation symbols). What I don't like about \scriptstyle is the fact that it not only reduces the size of the letters but also that of the indices and spacing. Writing e.g.

\scriptstyle A\displaystyle_1, \scriptstyle A\displaystyle_2

is quite cumbersome however. The use of brackets {} for the arguments of \scriptstyle are of no use here unfortunately – the code after the brackets stays within the scope of \scriptstyle (till the end of the math environment).

Is there an easier way? Or is there a standard for small caps in math environment?

Best Answer

Not sure it's a good idea, but here it is:

\documentclass{article}

\newcommand{\pnt}[1]{{\scriptstyle#1}}

\begin{document}

$\pnt{A}_1\mathrel{X}\pnt{B}_2$

$\pnt{A}\in a$

\end{document}

Related Solutions

[Tex/LaTex] Sans serif font with distinguished capital I for math.

Relative newcomers to the TeX world are Google's droid fonts, but a package was recently put on CTAN. It has the feature you want for capital I.

\documentclass{article}
\renewcommand*{\familydefault}{\sfdefault}
\usepackage{droid}
\begin{document}
\Huge This is droid sans. I like it. 
\end{document}

enter image description here

No swish on i or l, but j does.

[Tex/LaTex] Putting math inside a verbatim environment without altering the formatting

Spaces are obeyed in verbatim mode and Verbatim uses \ (backslash-space) when it finds a space in the input. There are some workarounds. In all the examples I omitted \catcode`^=7, preferring \sp instead of ^; but your option can be employed as well.

Using empty groups

\documentclass{article}
\usepackage{fancyvrb}
\begin{document}

\begin{Verbatim}[commandchars=\\\{\}]
# visit each \(\langle{}x,y\rangle\in{}s\sp{2}\)
for x in s:
  for y in s:
    foo(x, y)
\end{Verbatim}

\end{document}

This adds ordinary math atoms, but it should rarely be a concern with respect to spacing.

Using a noop macro

\documentclass{article}
\usepackage{fancyvrb}
\begin{document}

\newcommand{\?}{}

\begin{Verbatim}[commandchars=\\\{\}]
# visit each \(\langle\?x,y\rangle\in\?s\sp{2}\)
for x in s:
  for y in s:
    foo(x, y)
\end{Verbatim}

\end{document}

This avoids all possible spacing issues. Notice that a control symbol is used, so there's no need to delimit it with spaces.

Make the space again an ignored space in math mode

\documentclass{article}
\usepackage{fancyvrb}
\begin{document}

\makeatletter
\newcommand{\verbmathspace}{\let\FV@Space\space}
\makeatother

\begin{Verbatim}[commandchars=\\\{\},
  codes=\everymath\expandafter{\the\everymath\verbmathspace}]
# visit each \(\langle x, y\rangle\in s\sp{2}\)
for x in s:
  for y in s:
    foo(x, y)
\end{Verbatim}

\end{document}

In math mode the space is reverted to a normal space, so it will be ignored by TeX rule.

Output for all the examples