Latex 字母上方波浪线 1.\tilde{...} 2.\widetilde{...} $$\tilde E(w)=\frac{1}{2}\sum_{n=1}^M \{y(x_n,w)-t_n\}^2+\frac{\lambda }{2}||w||^2$$ 相关文章: 2021-10-24 2021-12-03 2021-12-03 2021-12-03 2022-12-23 2021-07-09 2021-05-02