# Align columns horizontally (multicols)

I have encounter an issue with multicols. I'm writing a document and I am using the class Thesis.cls from here.

I have the following code:

\documentclass[11pt, a4paper, twoside]{Thesis}
\usepackage[noprefix,norefeq]{nomencl}
\usepackage{multicol}
\makenomenclature
\usepackage{ifthen}
\renewcommand{\nomgroup}[1]{%
\item[\bfseries
\ifthenelse{\equal{#1}{C}}{Acronyms}{%
\ifthenelse{\equal{#1}{A}}{Subscripts}{%
\ifthenelse{\equal{#1}{N}}{Notation}{%
\ifthenelse{\equal{#1}{G}}{Greek Letters}{}}}}%
]}

\renewcommand{\nomname}{List of Symbols}
\newcommand{\nomunit}[1]{%
\renewcommand{\nomentryend}{\hspace*{\fill}#1}}

\begin{document}

\begin{multicols}{2}
\printnomenclature
\end{multicols}

\nomenclature[N]{A}{Somthing}
\nomenclature[N]{A}{Somthing}
\nomenclature[N]{A}{Somthing}
\nomenclature[N]{A}{Somthing}
\end{document}


But I have a problem. The columns are not printed aligned (see figure below). I have an extra space before the "Subscript".

• Welcome to TeX.SX!! Please give a full minimal working example. Currently we have to guess what packages etc you are using and this makes it really hard to help you. A MWE should start with a \documentclass command, have a minimal preamble and then \begin{document}...\end{document}. The code should compile and be as small as possible to demonstrate your problem. Cutting your code down to a MWE may well reveal what your problem actually is. In any case, it is really difficult to help you without more information. – user30471 Nov 2 '16 at 23:21

You need to open and close the multicols environment inside the thenomenclature environment, which can be done with the \nompreamble and \nompostamble hooks.

\documentclass[11pt, a4paper, twoside]{book}
\usepackage[noprefix,norefeq]{nomencl}
\usepackage{multicol}
\makenomenclature
\usepackage{ifthen}
\renewcommand{\nomgroup}[1]{%
\item[\bfseries
\ifthenelse{\equal{#1}{C}}{Acronyms}{%
\ifthenelse{\equal{#1}{A}}{Subscripts}{%
\ifthenelse{\equal{#1}{N}}{Notation}{%
\ifthenelse{\equal{#1}{G}}{Greek Letters}{}}}}%
]}

\renewcommand{\nomname}{List of Symbols}
\newcommand{\nomunit}[1]{%
\renewcommand{\nomentryend}{\hspace*{\fill}#1}}
\renewcommand{\nompreamble}{\begin{multicols}{2}}
\renewcommand{\nompostamble}{\end{multicols}}

\begin{document}

Some text

\printnomenclature

% populate the nomenclature with dummy entries
\count255=0
\loop\ifnum\count255<60