Questions tagged [syntax]

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

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35 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?
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0answers
21 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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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 $$\nabla^2\psi + \frac{8\pi^2m}{h^2}(E-V) = 0$$ (...
1
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1answer
71 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 ...
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2answers
769 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
71 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{...
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1answer
51 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, ...
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1answer
46 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
47 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
58 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{\...
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0answers
23 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
29 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
239 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
76 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] ...
2
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0answers
81 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 ...
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0answers
165 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 ...
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1answer
50 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
50 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. ...
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0answers
97 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
69 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
197 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
169 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\...
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1answer
51 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 ...
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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?
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0answers
132 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 ...
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0answers
67 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}... ...
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1answer
38 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
166 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 ...
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1answer
84 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
73 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
342 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 ...
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1answer
51 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)
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1answer
118 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
61 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. ...
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1answer
150 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
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3answers
116 views

proof environment

\documentclass[10pt,a4paper]{article} \usepackage[utf8]{inputenc} \usepackage{amsmath} \usepackage{amsthm} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{pgfplots} \begin{document} \begin{...
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1answer
146 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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0answers
1k views

What is the TeX at symbol / @ for? [duplicate]

Edit Note: I am trying to research "switches" (like \chapter), which led to this question. It might be helpful to tag this "switches". I have seen a lot of documentation that appears to be using ...
3
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2answers
218 views

How to put a frame around the grammar syntax in LaTeX

How I can put a frame around the grammar syntax in LaTeX like in listings that we use frame = single? For example, for this grammar: \documentclass{article} \usepackage{syntax} \begin{document} \...
3
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1answer
113 views

Epicycle and deferent with Tikz - Function syntax

I want to build an epicyclic graph and found a useful trigonometric function on the web (URL is in comment in my MWE). My personal issue is that I can't write a complex function as a "plot" argument. ...
2
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1answer
69 views

Putting severals terms below each other

i would like to put equations below each other and have equivalences next to it below each other as well. Usually i use the command &= to put equations below each other, but when i use that it ...
4
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1answer
208 views

Lyx changed format from usepackage{} to use_package

My document was written in the following syntax with LyX: \usepackage{algorithm} then everything in the document change to (I don't know how...): \use_package algorithm 1 instead... Do you know how ...
0
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1answer
277 views

How to syntax-highlight an own language / unpopular language?

How can I syntax-highlight an unpopular language that is not supported for lstlisting? The language is called "Cypher" (for the graph database Neo4j) und I would like to highlight words like "RETURN",...
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0answers
102 views

What does a backslash hyphen (\-) do?

What does \- do in the middle of a word? The context in which I saw it was \textsc{Some\-Word} I tried searching for this syntax with google but it's very difficult to get a search engine to do ...
8
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2answers
2k views

How test value of a command with `\ifthenelse` and `\equal`?

Revised question (Trying to follow suggestion in comment by David Carlisle.) I want to assign a string as the value of a command and then take alternative actions (by means of ifthenelse) according ...
3
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1answer
187 views

Use `code` syntax to insert some code [duplicate]

Instead of using \usepackage{listings} ... lstinline{for} or \lstinline{while} or \lstinline{main} Here you \codeword{see} an \codeword{example} of \codeword{code} how is it possible to define this ...

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