Open nicolas-tesla-x opened 1 year ago
I got an error: Undefined control sequence \bra,
Undefined control sequence \bra
Here's my formula code：
\[\bra{E,\alpha}W_{q}\ket{E,\beta} =\bra{E,\alpha}U_{g_{1}}^{\dagger}W_{q}U_{g_{1}}\ket{E,\beta}=e^{i( \beta-\alpha)}\bra{E,\alpha}W_{q}\ket{E,\beta},\] \[\Rightarrow\quad\bra{E,\alpha}W_{q}\ket{E,\beta} =0. \tag{3.8}\]
When I use MathJax, it renders normally：
I added a package here and it works：
I got an error:
Undefined control sequence \bra,Here's my formula code：
When I use MathJax, it renders normally：
I added a package here and it works：
