## spot the LaTeX mistake

It took me forever to spot the (obvious) mistake in the following LaTeX formula

\int \exp$-\{ (n+\sigma^{-2})\mu^2 -2n\mu{\bar x_n} + n ({\bar x_n})^2 \}/2$

Can you find it?!

### 18 Responses to “spot the LaTeX mistake”

1. …. can’t ….

2. $….$ is simply an alias for $$and$$ and thus can be used within an equation. \left[ … \right] must be used instead.

3. indeed indeed \{ and $have different meanings! 4. Tatiana X Says: On a second thought, \[ and \{ should swap and \[ be replaced with [. Same for$ and \}.
?
Get well soon!

5. Surely those brackets are going to open and close equation environments.

6. aren’t the “\int” and “\exp\” terms supposed to be enclosed by the math brackets $…$ ?

un “coup de bon courage” pour ton pouce…

7. Nicolas Chopin Says:

Is it \[ instead of either [ ?
Also: {\bar x_n} might be correct, but is ambiguous: do you mean
\bar{x}_n or \bar{x_n}?

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