# Tabular with "display math" vertical size

Alignments increase the line spacing by the amount `1\jot`

so

```
\documentclass{article}
\usepackage{amsmath,amsthm,amssymb}
\usepackage{array}
\begin{document}
\begin{align*}
\text{maximize}\quad 3x + 2y &+ 3x + 2y \\
\text{subject to}\quad 2x + y &\leq 18 \\
2x + 3y &\leq 42 \qquad\forall x\\
3x + y &\leq 2 \qquad\forall y\\
x, y &\geq 0
\end{align*}
\begin{center}
\openup\jot
\setbox\strutbox\hbox{\vrule height.7\baselineskip depth.3\baselineskip width 0pt}
\begin{tabular}{r>{\(\displaystyle}r<{\)}@{\(\;\)}>{\(\displaystyle}c<{\)}@{\(\;\)}>{\(\displaystyle}l<{\)}>{\(\displaystyle}l<{\)}}
maximize &\multicolumn{4}{>{\(\displaystyle}l<{\)}}{3x + 2y + 3x + 2y}\\
subject to& 2x + y & \leq & 18 \\
& 2x + 3y & \leq & 42 & \forall x\\
& 3x + y & \leq & 2 & \forall y\\
& x, y & \geq & 0 \\
\end{tabular}
\end{center}
\end{document}
```

I'd suggest looking into using `alignat*`

(the `*`

suppresses the numbering).
One writes this as `\begin{alignat*}{ncols}`

, where `ncols`

is the number of columns you wish to align.

See Sections 3.3 to 3.7 in the `amsmath`

documentation. You can also read about it on TeX.SE questions, for example in an `egreg`

answer to this question.

I'm far from an expert, so can't really advise much. I find it takes a bit of playing with to get the correct justification (right/left) and positioning, but once it's right it does look good! Maybe someone who is better with LaTeX will post a similar, but more embellished, version of this solution...

You have a dedicated package (`optidef`

) for optimisation problems. You also can easily align it with the `alignat*`

environment. Here are both solutions:

```
\documentclass{article}
\usepackage{amsmath}
\usepackage{optidef}
\begin{document}
\begin{alignat*}{3}
& \text{maximize} & \quad 3x + 2y &+ 3x + 2y \\
& \text{subject to} & 2x + y &\leq 18 \\
& & 2x + 3y &\leq 42 & & \forall x\\
& & 3x + y &\leq 2 & & \forall y\\
& & x, y &\geq 0
\end{alignat*}
\begin{maxi*}
{}{3x + 2y + 3x + 2y}{}{}
\addConstraint{2x + y }{\leq 18}
\addConstraint{2x +3y }{\leq 42}{\qquad\forall x}
\addConstraint{3x + y }{\leq 2}{\qquad\forall y}
\addConstraint{x, y }{\geq 0}
\end{maxi*}
\end{document}
```