![方程的中心](https://linux22.com/image/357475/%E6%96%B9%E7%A8%8B%E7%9A%84%E4%B8%AD%E5%BF%83.png)
\documentclass[12pt, a4paper,fleqn]{report}
\doublespacing
\usepackage[comma,super,sort&compress]{natbib}
\bibliographystyle{rsc.bst}
\usepackage{comment}
\setcounter{secnumdepth}{4}
\usepackage{graphicx}
\usepackage{amsmath}
\graphicspath{ {images/} }
\begin{document}
\section{Molecular dynamics simulations}
....content....
\begin{equation}
\centering
m_\mathit{i} \frac{\delta^2\mathbf{r_\mathit{i}}}{\delta \mathit{t}^2}= \mathbf{F_\mathit{i}},\mathit{i} = 1....N.
\end{equation}
答案1
类fleqn
选项使方程式左对齐(您特别要求此功能)。删除它会恢复默认行为:居中对齐。