Hi: I was defining a set with curly braces and put some words in between. For instance: {f: for all x, f < x}. If I enclose all between dollar signs (ds) the text will be poorly legible. Let's leave the ds's and place one immediately preceding the text and another immediately following. Then I get "unbalanced braces". I just don't know how to use mathjax to write an expression as in the example above. Unless latex has a way to include text within ds's. Can you help me? Anyways, why has mathjax to complain about an unbalanced brace? Can't he leave it as is?
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1 Answer
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As hinted at in a comment you can write
$\{f: \text{ for all } x, f < x\}$
$\{f: \text{ for all } x, f < x\}$
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1$\begingroup$ Else:
$\{f: \forall x, f< x\}$which renders $\{ f: \forall x, f< x\}$ $\endgroup$– amWhyMar 20, 2020 at 20:40 -
1$\begingroup$ Yes, that it is a neat workaround for not being able to write text, avoid text. $\endgroup$– quid ModMar 20, 2020 at 20:42
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1$\begingroup$ Also stf91, pay close attention to quid's formatting: For any brace (curly bracket) to render in mathjax, you need immediately precede them with a backslash, with no space in between the backslash and the curly bracket.
${x}$renders as: ${x}$, but$\{ x \}$renders as $\{x\}$. $\endgroup$– amWhyMar 21, 2020 at 10:07 -
1$\begingroup$ Similarly, to format $\$$ or $\%$ in mathjax, one needs to precede those symbols with a backslash. So if you want to format say "After a discount of $40\%$, an item originally priced at $\$50$ will only cost you $\$30$." You'd format including
$40\%$,$\$50$, and$\$30$. $\endgroup$– amWhyMar 21, 2020 at 10:13
\{and\}. See the MathJax Basic Tutorial and Quick Reference, Item 6 on Parentheses. $\endgroup$