8
votes
Accepted
Use other units than point for arraycolsep
The error message does not say that the it needs points, the message is
! Illegal unit of measure (pt inserted).
<to be read again>
m
l.5 \setlength{\arraycolsep}{3mu}
So ...
- 777k
5
votes
Spacing between mathrel and mathord same as between mathrel and mathopen
TeX inserts a thick space between a relation symbol and an opening atom. The following table has been taken from the TeXbook (see this answer for reference
The indices in the left column and the top ...
- 1.2m
5
votes
Accepted
Spacing between mathrel and mathord same as between mathrel and mathopen
TeX by Topic is wrong here. The original table in the TeXbook looks like this
- 333k
4
votes
Accepted
Turn on double spacing, but not before equations
You want the nodisplayskipstretch option, but also to modify \arraystretch.
\documentclass[12pt]{article}
\usepackage{amsmath}
\usepackage[nodisplayskipstretch]{setspace}
\usepackage{lipsum} % for ...
- 1.2m
2
votes
Accepted
How to detect inner spaces at the document level forwarded to token lists in LaTeX3?
Unprotected spaces are not treated as items in token lists in LaTeX3.
interface3.pdf says:
A token list (explicit, or stored in a variable) can be seen either as a list of “items”, or a list of “...
- 30.1k
2
votes
Operator names that ignore parentheses
I heartily disagree. Why should \dim behave differently from \sin? I really can't find a reason.
Anyway, you can ruin your math typesetting 😉 with the following definition.
\documentclass{article}
\...
- 1.2m
1
vote
Operator names that ignore parentheses
Quick hack: You can peek ahead with \@ifnextchar to conditionally add a {}.
\documentclass{article}
\makeatletter
\NewCommandCopy\orig@dim\dim
\renewcommand{\dim}{\orig@dim\@ifnextchar({{}}{}}
\...
- 5,116
1
vote
How to detect inner spaces at the document level forwarded to token lists in LaTeX3?
You can use tl_if_in but as shown here you may need to trim first if you really only care about inner spaces.
\documentclass{article}
\begin{document}
\ExplSyntaxOn
\def\hasspace#1{\tl_if_in:nnTF{#...
- 777k
1
vote
fbox of parbox of textwidth length is too wide
Following up on Phelype's comment:
\documentclass{article}
\newcommand{\answer}[1]{%
\par
\noindent\fbox{%
\parbox{\dimeval{\linewidth-2\fboxsep-2\fboxrule}}{%
#1 \hfill
...
- 5,116
1
vote
How to detect inner spaces at the document level forwarded to token lists in LaTeX3?
We can implement this task using TeX primitives only.
\catcode`~=12
\def\isinnerspace#1{\expandafter\isinnerA\detokenize{#1}\end}
\def\isinnerA#1\end{\expandafter\isinnerC\expanded{\isinnerB#1~{}} \...
- 75.9k
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