How do I get curly braces to show in math mode? When I write this:
$ K_1 = {s_1}, K_2 = {s_2, s_3, s_4} $
the braces disappear in the output.
math-mode
How do I get curly braces to show in math mode? When I write this:
$ K_1 = {s_1}, K_2 = {s_2, s_3, s_4} $
the braces disappear in the output.
Best Answer
Use
\{…\}
. But, as the contents inside the braces may vary in size, it would be better to use theDeclarePairedDelimiter
command from themathtools
package:\DeclarePairedDelimiter\set\{\}
This defines a
\set{…}
command, which accepts an optional argument:\big
,\Big
,\bigg
, or\Bigg
, which implicitly adds a pair of\bigl…\bigr
, &c. in front of the braces. Example:\set[\big]{...}
A
\set*{…}
variant becomes available for free, which adds implicitly a pair of\left…\right
.