Questions tagged [implicit-braces]

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5 votes
3 answers
287 views

How to draw a table with different braces

I do not have any idea how to draw this kind of braces in a table! (picture attached)
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  • 61
5 votes
1 answer
211 views

Why do some commands require explicit braces in subscripts?

Most single commands don't require explicit braces if they appear in a subscript or superscript. For example, a_\text{n} compiles fine. But a few do require explicit braces: for example, a_{\...
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  • 659
7 votes
1 answer
2k views

Change the direction of a Brace

The first of my two braces (the one on the left does not appear as expected. How can I make it head downwards? \documentclass[]{article} \usepackage{tikz} \usetikzlibrary{calc,trees,positioning,...
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  • 635
6 votes
2 answers
242 views

Whole word as a macro argument when macro called without braces

I have a macro: \newcommand{\sEmph}[1]{\textbf{\textcolor{NavyBlue}{#1}}} Then I can do: Some text is in \sEmph{blue}, and some in black. with this result: But if I omit the braces only the ...
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18 votes
3 answers
2k views

Is it wrong to use \frac1{}?

When typing math in (La)TeX, I often omit the braces surrounding the first argument to the \frac macro, at least when it's 1, writing things like \frac1{1+x^2}. I initially came by that use while ...
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  • 3,924
4 votes
1 answer
541 views

How can I pass the body of a TikZ node to a font-changing macro?

After looking around at some other answers on this site, I'm trying to typeset a tree using the tikz-qtree package. It works great, but by design it does not let you use macros in the tree nodes, ...
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  • 6,832
8 votes
6 answers
468 views

When might it be helpful to use implicit braces instead of explicit braces?

We've covered the question "When can one use implicit braces instead of explicit braces?"; this leads immediately in my mind to the question "Why would one want to?" (Remember, implicit braces are e....
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  • 2,749
22 votes
1 answer
722 views

When can one use implicit braces instead of explicit braces?

For context, an implicit character is a control sequence that has been \let to a character. For example, both plain TeX and LaTeX use \let\bgroup{ \let\egroup} making \bgroup and \egroup into implicit ...
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  • 60k
135 votes
2 answers
49k views

When should one use \begingroup instead of \bgroup?

Is there ever a case when the use of \begingroup is preferred to \bgroup? Obviously, \bgroup is necessary in cases where you need to have balanced braces and thus cannot use {, but when is it ...
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