compiler-errors - split an equation with multicols on

Question

I would like to split my large equation in two column. But my file fails to compile when I try to use \{amsmath} and then split, multline, etc... The error says: Package amsmath Error:

\begin{multline} allowed only in paragraph mode. \begin{multline}

Does someone knows how to split a large equation while using multicols?

Here my file:

\usepackage{amsmath}
\begin{multicols}{2}

\begin{equation}
\begin{multline}
E(x_0, y_0)=  \int^{+\infty}_{-\infty} \ , exp \left( az \bigg[ \frac{ax_0}{3z} + \frac{y^2-2y_0 y}{2z} \bigg] \right) \cdot E(x,y)dxdy
 \end{multline}
\label{Equation_1}
\end{equation}

\end {multicols}

Answer 1

该错误告诉您不能multline在数学模式下使用（使用equation块时输入）。multline环境已经暗示了数学模式。

当我删除equation块时，它可以工作。请记住，您必须添加 a\\才能在方程式中实际使用多行。

结果代码：

\begin{multicols}{2}

\begin{multline}
E(x_0, y_0)=  \int^{+\infty}_{-\infty} \ , exp \left( az \bigg[ \frac{ax_0}{3z} + \frac{y^2-2y_0 y}{2z} \bigg] \right)\\ \cdot E(x,y)dxdy
 \end{multline}
\label{Equation_1}

\end{multicols}