helloworld提出了问题
2019-12-02 17:32
I see a latex code ```latex{ ~~~~a) squared difference: begin{equation} label{eq.square_diff} Phi(q_{mathbf{p}'}, k_{mathbf{p}}) = -( q_{mathbf{p}'} - k_{mathbf{p}})^2. end{equation} ``` But I do...