Questions tagged [syntax]

{syntax} is about the principles and construction of the (La)TeX language.

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votes
1answer
60 views

Is there a formal definition of the BibTeX syntax?

I was recently tasked with extracting information and consolidating a large number of BibTeX files. Should be easy enough, there are perl and python modules to parse it... Well, that's what I thought. ...
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0answers
6 views

Include one tex file to another one show two titles and one abstract

I use \input to merge one tex file to another one. The two tex files have their own titles and bibliographies (I use \bibitem). However, when I use \maketitle to show the titles of each file, the ...
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0answers
34 views

Syntax error (1067230): Unknown filter 'Crypt'

I'm running into a strange problem: when running my LaTex code on 1 pc, I do not have any problem (running with TeXstudio). When running exactly the same code on another pc, I get the error "...
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0answers
10 views

Make expression a suffix in latex [duplicate]

I have written the following Latex to show a set of n integers: Assume you have n integers \( \{i_0, i_1, ... , i_n-1\} \) Unfortunately, for the element i_n-1, only the n is shown as a suffix ...
0
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1answer
49 views

Syntax error in LuaLaTeX \directlua code

I have the below document that I try to compile with LuaLaTex (using the MiKTeX package). \documentclass{article} \usepackage{pgfplots} \pgfplotsset{compat=newest} \begin{document} \expandafter\...
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1answer
24 views

Adding a date to my title page given my current usepackage set

Very new user of LaTeX here making my first ever document using this typeset. I'm just about done, but am running into a really annoying issue with incorporating a course name and date on my title ...
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0answers
26 views

How do I write more than 1 condition under a \bigwedge? [duplicate]

What I want: Now I can easily write the first condition $w \in V(G)$ myself, but how can I add a second (and a 3rd and a 4th) condition under it?
1
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1answer
31 views

Syntax error with INCOLLECTION, booktitle in bibtex

My .bib file looks like this: @incollection{stal2, author = {Robert Stalnaker}, title = {Assertion} booktitle = {Context and Content}, publisher = {Oxford University Press},...
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0answers
17 views

Correct syntax for \text in math mode [duplicate]

In some contexts, I see the \text command used as follows: $ A_\text B $ , which renders correctly as italics A subscripted by a roman B. However, I recall that I "read somewhere" that the ...
1
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2answers
46 views

Textbf not working for subscript

\textbf{C$_{global\_binary}$} The above is the code I use, the generate text is I want to make "global_binary" subscript also in bold, how could I do this?
2
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1answer
42 views

Moving the quote in the ModernCV banking style

I'm having problems moving some parts of the header in the banking style I managed to move most of it with \patchcmd{\makehead}% <cmd> {\setlength{\makeheaddetailswidth}{0.8\textwidth}}% <...
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0answers
38 views

How to use command \chapter with customised looks in report

i'm new to latex. I met recently a problem at using \chapter from report class. When I use the \chapter{Introduction}, it will turn out as the following. but I want to have the form like 1 Introdution ...
44
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1answer
3k views

(La)TeX — What does the '%' character do?

the % character seems to have a lot of uses. So far, I have encountered it in the following places: For writing comments % Schrodinger wave equation $$\nabla^2\psi + \frac{8\pi^2m}{h^2}(E-V) = 0$$ (...
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1answer
77 views

Why does the “LaTeX” logo have random capitalisation and letter height? [duplicate]

Why does LaTex have random capitalisation and letter height? Context: So I'm sure this is a rather random question which probably has a really obvious answer, but since I couldn't find it on this site ...
9
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1answer
778 views

What is the difference between \\* and \\ *?

I used a * in a bsmallmatrix and found a curious effect. If I write \\* the * is not printed whereas with \\ * it is. Do you guys know why this happens? My tiny example and screenshot follow below: \...
2
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3answers
78 views

syntax error with $

\centering \begin{tabular}{ |p{4cm}|p{8cm}|} \hline Model& Branching Fractions \\ \hline \widetilde{B}-\widetilde{t}\ \text{coannihilation}& 79\% $\tau{^{-}}\tau{^{+}}$,\ 15\% $b\overline{...
0
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1answer
52 views

How do I number my images as examples?

I am trying to insert Syntax trees into a paper I am writing, but I am not sure how to number them. My trees are .png files, and I am inserting them into the document using \begin{figure} however, ...
0
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1answer
98 views

How do you write an exponent of an exponent?

I am trying to write 2 to the power of 2 to the power of k, and $2^2^k$ instead gives 2 to the power of 2k.
0
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1answer
97 views

TikZ-Feynman does not print the “crossed dot”. What is the right syntax?

I am using the package tikz-feynman to draw feynman diagrams with latex. I would like to reproduce the following diagram Reading the user manual of the package tikzfeynman, one discovers that to draw ...
2
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1answer
65 views

private scope for long blocks

I understand that a privately-scoped block is created by squiggly-brace pairs ({, }). The following document has body text "bar baz": \documentclass{article} \begin{document} \newcommand{\...
0
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0answers
27 views

Force empty line after \begin{solution}

Here's the code - how can I leave space between "Lösung" and 1)? \begin{solution} 1) $X\cup Y \cup Z= \{0,1,2,3,5,6\}$ \\ 2) $X\cap Y=\{2,4\}$ \\ 3) $Z\setminus Y=\{5, 3\}$ \\ 4) $((...
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0answers
60 views

TeX source code is just black instead of including red/blue/green elements

I have a simple question. I am writing a document in the Overleaf editor with multiple chapters in different .tex files, and in one of the chapters the source code looks like this: However, in my ...
5
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3answers
258 views

What is the purpose of a <filler> in TeX's syntax?

Many of TeX's primitives require a <general text> as their argument (e.g. \uppercase), which is defined as (TeXbook p. 276) <general text> -> <filler>{<balanced text><...
2
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2answers
79 views

Is there a way to use < and > as delimiters to optional command or environment parameters?

Say I want to define an environment like "color description" which would be the same as "description" except that one could add an optional color background to the label: \begin{colordescription}[red] ...
5
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4answers
166 views

How to make a declaration from a command?

There are two forms of setting the type style: the declarative method e.g, \itshape and the command form, e.g, \textit. The command form takes an argument whereas the declarative form does not --- it ...
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1answer
23 views

Problem Bibdesk syntax

I'm writing a document with a bibliography using Bibdesk. Some of my booktitles include other titles which implies to adapt the style to prevent any confusion but I don't know how to do that. For ...
3
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0answers
206 views

How is TeX/LaTeX parsed?

I have some questions about TeX/LaTeX parser and parsing TeX/LaTeX after reading the following: Limitations when parsing TeX as a context-free grammar This is a PEG parser, which means it interprets ...
0
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1answer
52 views

How to allow underscore in self-defined command?

For example, those lines works perfectly fine. \includegraphics[scale=1.1]{9709_s10_qp_11_Q3} \\ \flushright \verb=9709_s10_qp_11_Q3= \\[2ex] \includegraphics[scale=1.1]{9709_s10_qp_12_Q7} \\ \...
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0answers
68 views

Attaching text box to tikzpicture (syntax tree)

I'm looking to attach some text to a specific node in this syntax tree with an arrow. Currently, I can't get the text to span over multiple lines, so it just cuts off once it reaches the right margin. ...
1
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0answers
99 views

what is the meaning of “\(” and “\)” in overleaf? [duplicate]

In overleaf tutorial https://www.overleaf.com/learn/latex/Commands, \newcommand{\R}{\mathbb{R}} The set of real numbers are usually represented by a blackboard bold capital r: \( \R \). I know ...
5
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1answer
93 views

Is there a way to use mathmode expressions inside the grammar environment?

I'm trying to write the grammar of FOL in BNF using the syntax package, but every time I use a logical symbol or a mathmode command (ex. \neg, \land, \mathbb{}, etc.) I get an error. For example: \...
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1answer
51 views

Arrow with text in Qtree or tikz-qtree?

I'm using qtree and I'm having problems making the arrow with the text as in the image below Thanks ahead
0
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1answer
257 views

What `\cs_new_protected` and `\cs_generate_variant` do?

After my question Undefined control sequence while adding a new parameter to a existing \ExplSyntaxOn code, I trying to fully understand the code behind it. So far, so good, with: The expl3 package ...
3
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1answer
259 views

A question about \ifcase syntax

The command \today has been defined as follows: \def\today{\ifcase\month\or January\or February\or March\or April\or May\or June\or July\or August\or September\or October\or November\or December\...
2
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1answer
58 views

How to put a text over symbols, part 2

Building on How do I put text over symbols? I created a new command : \newcommand{\myequ}[1]{\stackrel{\mathclap{\normalfont\mbox{#1}}}{=}} which gives overwriting : when #1 is too long. Is there a ...
22
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3answers
2k views

Are ^ and _ the only commands in LaTeX not preceded by a backslash?

Almost all commands in LaTeX are preceded by a backslash. Are the superscript and subscript commands in the math environment (^ and _ respectively) the only exceptions?
6
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0answers
134 views

Historical imperfections of (La)TeX [closed]

Assume for a moment that all TeX literature, TeX software, TeX files etc. got destroyed in some global cataclysm. All information about TeX survives only in the mind of a few TeX gurus, or something ...
1
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0answers
71 views

Is there a general format for LaTeX commands?

I am quite new to LaTeX and as I was reading the LaTeX Wikibook I came upon the following general definition for a command in LaTeX here: \commandname[option1,option2,...]{argument1}{argument2}... ...
0
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1answer
42 views

! Missing } inserted error in equation/split

I have the following equation. \begin{equation} \begin{split} E_\textrm{el}&=\sum_{i}^{\textrm{occ.}}n_i\bra{\psi_i}H\ket{\psi_i}+\frac{1}{2}\sum_{\textrm{A,B}}^{}\sum_{l\textrm{(A)}}^{}\sum_{l'\...
6
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2answers
171 views

What is an internal dimension/glue/muglue?

In the documentation of l3skip's \dim_eval:n one is warned This [...] requires suitable termination if used in a TeX-style assignment as it is not an ⟨internal dimension⟩. Analogous warnings can ...
2
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1answer
95 views

Why does leaving a blank line in displaymath mode cause an error during compilation?

When I compile the following code everything runs with no issues: $$ \left[ \begin{matrix} 2 & 3 \end{matrix} \right] \quad \left[ \begin{matrix} 2 & 3 \end{matrix} \right] $$ However, when ...
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0answers
83 views

Accessing variable in inline expression (rmd to pdf output)

I'm working on coding a reproducible rmd which will output a pdf document. I know that for an inline expression to work, it requires $ $ to be placed around it but is there a way around this? Client &...
9
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2answers
346 views

What does “frozen” mean (e.g. for catcodes)?

In a comment (emphasis mine) no, it has to change catcodes and this don't work if they are already frozen in response to my comment on her answer Ulrike Fischer mentioned the concept of frozen ...
0
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1answer
39 views

Problem with spacing in syntactic trees using tikz [duplicate]

I am trying to get a tree like this using the tikz package and the syntax for this, according to a manual, is \begin{tikzpicture}[mytree] \node (top) {DP} child {node {D\\the}} child {node {NP} child ...
0
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1answer
52 views

How to write these formulas and equations [duplicate]

How can I write this formula: 1) I have tried to use $ \stackrel {}{}$ but it does not give the right form. And how to align these equations 2) 3)
7
votes
1answer
139 views

Commas in \clist_map_inline:nn split values in undesired places

I am curious about the workings of \clist_map_inline:nn. I have a list of sentences. This list is has no fixed length. Sometimes, the list may contain 2 sentences, or 10 sentences etc. So, I came ...
2
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1answer
65 views

How to hyphenate in a \synt{} with the syntax package?

Consider the following example: \documentclass[draft]{article} \usepackage{syntax} \begin{document} blah blah blah blah blah blah blah blah blah blah blah blah blah \synt{blahblah-blahblah} blah. ...
1
vote
1answer
153 views

What is “# Notation”? How does the # syntax work?

Closely Related: How to implement \expandbefore, similarly to \expandafter? In the related question, a reference is made to the "# Notation". How does the syntax work? From an answer on the other ...
5
votes
3answers
122 views

proof environment

\documentclass[10pt,a4paper]{article} \usepackage[utf8]{inputenc} \usepackage{amsmath} \usepackage{amsthm} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{pgfplots} \begin{document} \begin{...
2
votes
1answer
188 views

Incomplete \iffalse when using syntax package with a citation

For reasons unknown to me the following minimised latex code produces a (/opt/local/share/texmf-texlive/tex/latex/mdwtools/syntax.sty) (./text.aux)) ! Incomplete \iffalse; all text was ignored ...

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