Evaluation Symbol

Mar 2015
1,720
126
New Jersey
How do you do this (evaluation symbol) with a tall bar, similar to integral?

\(\displaystyle {|^{a}}_{-a}\)

Thanks
 
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Mar 2015
1,720
126
New Jersey
\(\displaystyle (x-a)\biggr\rvert_{a}^{b}\)

I figured it out using integration symbol as a model and looking up bigger vertical bar:

"(x-a)\biggr\rvert_{a}^{b}"
 

v8archie

Math Team
Dec 2013
7,709
2,677
Colombia
$$\left. x + \cos x\right|_a^b$$
Code:
$$\left. x + \cos x\right|_a^b$$
$$\left. x + \frac{x^2}{2}\right|_a^b$$
Code:
$$\left. x + \frac{x^2}{2}\right|_a^b$$
It works for any type of bracket.

$$\left. \begin{aligned} x+y&=3 \\ x-y&=1 \end{aligned} \right\} \implies \left\{ \begin{aligned} x &= 2 \\ y &= 1\end{aligned} \right.$$
Code:
$$\left.
\begin{aligned} x+y&=3 \\ x-y&=1 \end{aligned} 
\right\} \implies \left\{ 
\begin{aligned} x &= 2 \\ y &= 1\end{aligned}
\right.$$
\left \right pairs must be matched.
 
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