I am trying to left-justify a split equation. I would like to have the first line left-justified, and have a hanging indent on the second line. I used flalign
successfully for other equations that weren't split, but this split equation is causing me problems. Any suggestions are much appreciated!
\documentclass{article}
\usepackage{amssymb}
\usepackage{amsmath}
\begin{document}
\begin{flalign}
\begin{split}
\Lambda^{12}_{ee}&=\Lambda^{21}_{ee}=\frac{64x_e}{75k_B}\sqrt{\frac{m_e}{2\pi k_BT_e}}\left[\sum_{j\in\set{H}}x_j\left(\frac{175}{16}\Omega^{(1,1)}_{ej}-\frac{315}{8}\Omega^{(1,2)}_{ej}+57\Omega^{(1,3)}_{ej} -30\Omega^{(1,4)}_{ej} \right)\right. \\
&\left.+x_e\sqrt{2}\left(\frac{7}{4}\Omega^{(2,2)}_{ee}-2\Omega^{(2,3)}_{ee}\right)\right]
\end{split}
\end{flalign}
\end{document}
Best Answer
I'm not sure to understand what you mean by “left aligning”; either you left align or center all equations.
For the specific case, the formula is really difficult to split sensibly, so I propose a different strategy: