Latex how to write bar

Monday 1 June 2020, by Nadir Soualem

bar Latex overline

$\bar{X}$

$\overline{X}$

$\bar{X} \overline{X}$
$\bar{X_n} \overline{X_n}$
$\bar{XY} \overline{XY}$
$\bar{X^\alpha} \overline{X^\alpha}$

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