\begin{equation}
MI\bigl(E,{E^t},E_k^n,E_l^m \bigr) =\\
\sum_i \sum_j p\bigl(E_i=0 ,E_j^t=0,E_k^n=0,E_l^m=0\bigr)\times \\[-1ex]
\log _2 \mathrlap{\Biggl(\frac{p\left(E_i=0, E_j^t=0, E_k^n=0, E_l^m=0\right)}{p\left(E_i=0 \right)p\left(E_j^t=0\right)p\left(E_k^n=0\right)p\left( E_l^m=0 \right)}\Biggr)} \\
{}+p\left(E_i = 0, E_j^t = 0, E_k^n = 0,E_l^m = 1\right)\times{} \\
\log_2\left(\frac{p\left(E_i = 0, E_j^t = 0, E_k^n = 0,E_l^m = 1 \right)}{p\left(E_i = 0 \right)p\left(E_j^t = 0\right) p\left(E_k^n = 0\right) p\left( E_l^m = 1 \right)}\right)
\end{equation}
在这个等式中
答案1
该equation
环境尚未设置来处理多线方程。
对于您的等式,multline
由包提供的环境amsmath
似乎是合适的。
但是,请摆脱指令,并且不要依赖使用和\mathrlap
来自动调整括号大小。left
\right
\documentclass{article}
\usepackage{amsmath}
\begin{document}
\begin{multline}
MI\bigl(E,{E^t},E_k^n,E_l^m \bigr) = \\
\shoveleft{\qquad\smash[b]{\sum_i \sum_j} \,
p\bigl(E_i=0 ,E_j^t=0,E_k^n=0,E_l^m=0\bigr)} \\
\times \log_2 \biggl(
\frac{p\bigl(E_i=0, E_j^t=0, E_k^n=0, E_l^m=0\bigr)}{
p(E_i=0)\,p(E_j^t=0)\,p(E_k^n=0)\,p(E_l^m=0)}\biggr) \\
+p\bigl(E_i = 0, E_j^t = 0, E_k^n = 0,E_l^m = 1\bigr)\\
\times \log_2\biggl(
\frac{p\bigl(E_i = 0, E_j^t = 0, E_k^n = 0,E_l^m = 1\bigr)}{
p(E_i=0)\,p(E_j^t=0)\,p(E_k^n=0)\,p(E_l^m=1)}\biggr)
\end{multline}
\end{document}