horizontal alignmentlyxmath-mode
I am using LyX and I want a multiline and multicolumn display formula with each column aligned to the left.
But when I add a formula and add columns, some are aligned to the right and some are aligned to the left.
How do I control it and make all columns aligned to the left?
It is a bit tricky...
\documentclass{article}
\usepackage{amsmath}
\begin{document}
\noindent\hrulefill
\begin{flalign*}
\begin{aligned}
\rlap{aaaa}\\ \rlap{ee}
\end{aligned}
&&\arraycolsep=1.4pt
\begin{array}{rll}
bbb &= cccccc &= d\\[\jot]
f &= g &= hh
\end{array}
&&
\begin{aligned}
\refstepcounter{equation}(\theequation)\\ \refstepcounter{equation}(\theequation)
\end{aligned}
\end{flalign*}
\end{document}
There are quite a few ways to achieve your objective. One of them would be to use a tabular* environment instead of a tabular environment:
\begin{tabular*}{\textwidth}{l @{\extracolsep{\fill}} l}
Address1 & Mobile: 888-000-0000 \\
Address2 & Fax: 888-000-0000 \\
\end{tabular*}
The somewhat intimidating-looking contruct @{\extracolsep{\fill}} serves to push the table's columns maximally far apart (while making the entire table still fit into a text block of width \textwidth).
Best Answer
When you use the
alignenvironment (Insert --> Math --> AMS Align), the columns are aligned asrlrlrl..., as the usual use case is alignment around a relation. If you leave the odd columns (first, third, etc.) empty and place the content in the even columns, you will have just left alignment. This will, however, distribute the columns evenly over the text width, so if you have few/narrow columns, there may be a lot of white space between them.An alternative then is to first add a normal display math environment (Ctrl + Shift + M) and within this add an
alignedenvironment: Insert --> Math --> Aligned. This has the same alignment asalign, so you would have to leave columns empty, but there won't be the extra space between them.