我的公式代码如下:
\begin{eqnarray}\label{eqn3_2}
\begin{array}{ll}
\underbrace {\left[ {\begin{array}{*{20}{c}}
{y(1)}&{y(2)}& \cdots &{y(L)}
\end{array}} \right]}_Y = \Theta \underbrace {\left[ {\begin{array}{*{20}{c}}
{x(1)}&{x(2)}& \cdots &{x(L)}
\end{array}} \right]}_X + \underbrace {\left[ {\begin{array}{*{20}{c}}
{v(1)}&{v(2)}& \cdots &{v(L)}
\end{array}} \right]}_V
\end{array}
\end{eqnarray}
生成如下:
我现在想把加号后面的部分换到第二行,并且加号与等号对齐,请问应该如何实现?急急急!!
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\begin{eqnarray}\label{eqn3_2}ç»æå¦ä¸ï¼