Math & Science ⇒ Control Spacing of Comments in aligned Equations

[jaybz]

How can I decrease the amount of space between the comments and the math in the following ?

Code: Select all

\documentclass[11pt]{article}
\usepackage{mathtools}
\begin{document}
\begin{align*}
    3+x &=4 && \text{comment}\\
    x &=4-3 && \text{another comment}\\
    x &=1  && \text{yet another comment}\\ 
\end{align*}
\end{document}

[kajal]

Hi,
Just use \hspace and set the values (I use -2.7cm)

Code: Select all

\documentclass[11pt]{article}
\usepackage{mathtools}
\begin{document}
\begin{align*}
    3+x &=4 && \hspace{-2.7cm}\text{comment}\\
    x &=4-3 && \hspace{-2.7cm}\text{another comment}\\
    x &=1  && \hspace{-2.7cm}\text{yet another comment}\\
\end{align*}
\end{document}

[localghost]

You can alternatively use the alignat* environment to have more control about the horizontal space.

Code: Select all

\documentclass[11pt]{article}
\usepackage[T1]{fontenc}
\usepackage{mathtools}  % loads »amsmath«

\begin{document}
 \begin{alignat*}{2}
    3+x &=4   & \quad & \text{comment}             \\
      x &=4-3 &       & \text{another comment}     \\
      x &=1   &       & \text{yet another comment}
  \end{alignat*}
\end{document}

Details can be found in the amsmath manual.


Thorsten

[jaybz]

I try to use negative hspace and vspace only as a last resort but thank you for the response kajal. The alignat method works fine, I'll use that. Thank you localghost.