Curly braces in math mode - TeX - LaTe…
https://tex.stackexchange.com/questions/268766/curly-braces-in-math-mode
Ordinary symbols () [] make parentheses and brackets (2+3) [3+7]. Use { and } for curly braces. These do not scale with the formula in between. You can control the size of brackets by using left and right. Use the langle and rangle commands for < and > symbols. Use DeclarePairedDelimiter command from the mathtools package to declare paired delimiters. Do not escape square brackets in LaTeX if you want them typeset. Use textstyle, displaystyle, scriptstyle, and scriptscriptstyle to apply different styles for mathematics typeset.
Ordinary symbols () [] make parentheses and brackets (2+3) [3+7].
Use { and } for curly braces. These do not scale with the formula in between. You can control the size of brackets by using left and right.
Use the langle and rangle commands for < and > symbols.
Use DeclarePairedDelimiter command from the mathtools package to declare paired delimiters.
Do not escape square brackets in LaTeX if you want them typeset.
Use textstyle, displaystyle, scriptstyle, and scriptscriptstyle to apply different styles for mathematics typeset.
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