Questions tagged [conditionals]
{conditionals} is about macros like \if and \ifx that may execute other macros depending on whether certain conditions are true or not. Popular packages are {etoolbox} and {ifthen}.
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Help with loops – why is there an Ω?
I am just getting some experience with looping constructs in TeX/LaTeX. I thought I understood how \@tfor works, and things were mostly coming out as I wanted. But I ran into some unexpected ...
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conditional enumerate labels
I am writing a math book. I have exercises that have questions AND subquestions (for example 1 then 1.a, 1.b, 2 then 2.a, 2.b, 2.c etc.). I also have exercises that have one questions, without ...
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How does \if:w work?
I cannot work out how \if:w works and LaTeX3's manual does not show any example on how to use it:
I want to check whether the document is currently in oneside or twoside mode:
\if@twoside
Twoside ...
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Why \IfPackageAtLeastTF{⟨package⟩}{⟨date⟩}{\PassOptionsToPackage{⟨option⟩}{⟨package⟩}}{} doesn't pass ⟨option⟩ to ⟨package⟩?
My current version of parskip is 2021-03-14 so:
\IfPackageAtLeastTF{parskip}{2018-08-24}{\PassOptionsToPackage{indent}{parskip}}{}
\usepackage{parskip}
should pass the indent option to parskip. But ...
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Displaying article title in fancyhdr header with conditionals
I use the tip found here How to display article title in fancyhdr header to display article title in fancy header. But I'm not able to make it works within a condition sequence.
As an example, this ...
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Checking if a certain fragment is located earlier in the document
Very often I want to refer to a certain claim I mentioned earlier in the document: "As I said earlier, blah." Since I often rearrange material, I need to ensure that "blah" indeed ...
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Can I change the effect of a command depending on the environment in which it's invoked?
I need a user-defined command to behave differently depending on whether it's invoked inside a \begin{quotation} environment or not. Is that possible? I don't know where to start!
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Analyze number of spreadtab rows for conditionally changing text elements in the document
again I need your help. I'm writing my invoices for my small music busines with LATEX scrlttr2 and with a spreadtab-tables. It is working very well, but I want to have an automatic selection of some ...
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\ifnum to draw a tikzpicture, less than or equals
I want to make a conditional statement that draws one tikz picture for specific values of \t and another for different \t values.
Here is a M(non)WE:
\documentclass{article}
\usepackage{tikz,ifthen}
\...
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Switching between translations of the Bible, looking up text
I have a document with scriptures listed, that I can call. (I'm not sure this is the best way to do it, but it's based on this stackoverflow answer.)
\documentclass{book}
\makeatletter
\newcommand\...
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Conditional Output with user input
I am trying to write a form in Latex where I'm asking a question an if the answer is no I whant to ask another question. I'm a real beginner in Latex and I need a little help how to start it.
It ...
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Check if a file has been modified since last compile in Overleaf
I have an if-statement that I call in my .tex document in Overleaf
\IfFileExists{mypdf.pdf}
{\includegraphics[width=1\textwidth}{mypdf.pdf}}
{\includestandalone[width=1\...
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How make raggedleft really right aligned in if/else environment?
For some reason, the \raggedleft isn't really right-aligned. I tried minipage but that apparently doesn't work in the if/else environment.
\documentclass[
% handout,
english,usenames,...
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Array or tabular in Beamer breaks \if
I want to have an array or tabular environment in an \if statement in Beamer. If I have an article, this compiles just fine:
\documentclass{article}
\def\x{1}
\begin{document}
\if\x1
\begin{tabular}{...
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How to define a command (or similar) that makes a conditional expression reusable?
I'm struggling with the correct use of conditional expressions with ifthenelse at the moment. I would like to define a command (or similar) that represents a certain conditional expression in order to ...
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