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math mode - vertical bar for absolute value and conditional expectation - TeX - LaTeX Stack Exchange
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math mode - Drawing absolute value bars around a fraction with different height of numerator and denominator - TeX - LaTeX Stack Exchange
![math mode - Drawing absolute value bars around a fraction with different height of numerator and denominator - TeX - LaTeX Stack Exchange math mode - Drawing absolute value bars around a fraction with different height of numerator and denominator - TeX - LaTeX Stack Exchange](https://i.stack.imgur.com/APz8R.jpg)
math mode - Drawing absolute value bars around a fraction with different height of numerator and denominator - TeX - LaTeX Stack Exchange
![math mode - vertical bar for absolute value and conditional expectation - TeX - LaTeX Stack Exchange math mode - vertical bar for absolute value and conditional expectation - TeX - LaTeX Stack Exchange](https://i.stack.imgur.com/xchBu.png)