Linked Questions

I would like to make a deep copy of macro that I don't have control of, because various packages might change it. So I want to take the current meaning of the macro, patching it, but without changing ...

For most of my purposes, I use \varepsilon, so I have a \renewcommand{\epsilon}{\varepsilon} in my personal .sty file. A recent homework problem in my numerical calculus class has meant that I would ...

Inspired by a question about \let and \def, I have some that essentially all boil down to asking What are the differences between \def and \newcommand? In particular, I wonder Is it possible to have ...

When you write \edef\a{\b} \let\a\b the results are often identical. What is the difference between these two commands? When do they behave the same? When do they not? (The question isn't for me; ...

When I need to retrieve the value of a key in a macro, I use the key handlers .get and .store in. Here is what is written in the pgfkeys documentation: Key handler key /.get= macro Executes a \let ...

I'm beginning to learn LaTeX and I need some help with counters. My goal is to store the value a certain counter reaches at some point in the document and use it later. This is my attempt: \...

Here's an example of some code from LaTeX's \DeclareFontFamily: \def\reserved@a{#3} \global \expandafter\let\csname #1+#2\expandafter\endcsname \ifx \reserved@a\@empty \@empty \...

The Subfiles package makes compiling individual parts of a LaTex document convenient. The package works so that each subfile inherits the master preamble main.tex and the user is able to compile ...

I've overwritten the \bullet command using \renewcommand (which in hindsight, was a bad idea...). After using the new \bullet command for quite a while, I've realized that it behaves badly in certain ...

I have a collection of documents that I want to read into a LaTeX environment. The problem is that these documents are not exactly formatted the way I would like. I would like to create an ...

Let's say I'm working on a LaTeX document collaboratively with someone else. I have defined a bunch of command aliases (such as \true for \top and \false for \bot); their precise purpose doesn't ...

I've got myself into a stupid situation: I am writing a document about entropy, and decided to use \H as a macro for \mathbf{H}. But then I had a problem because I had written the name Erd\H{o}s ...

Is there a merged command \maybenewcommand that is either \newcommand or \renewcommand, depending on the situation: if the command is not yet defined, use \newcommand and use \renewcommand otherwise. ...

I found this question Adding some common text to enumerated description lists to be the closest: \documentclass{scrbook} \usepackage{enumitem} \newcounter{descriptcount} \newlist{enumdescript}{...

I would like to ask, please, by which code it may be possible to change the rule belonging to a specific series of footnotes in reledmac. As I have learned from a previous answer, it is possible to ...