[object Object]

• 单的效果：$A^2$、2
• 双$：$\left|\psi_{\mu}\right\rangle=\sum_{i=1}^{n}\left|\varphi_{i}\right\rangle a_{i \mu}$ 。5555 $$\left|\psi_{\mu}\right\rangle=\sum_{i=1}^{n}\left|\varphi_{i}\right\rangle a_{i \mu}$$ 打发士