Page Layout ⇒ Adjusting Columns width

[dasatti]

I am using a twocolumn article class for my document (\documentclass[a4paper,10pt,twocolumn]{article}) and can some body tell me what is the default columns width for this class and what is the default space between the columns? I want my document columns to be 3-1/16 inches (7.85 cm) wide and with a 3/8 inch (0.81 cm) space between them. If these are not the default values please tell me how to adjust my document according to them.

Thanks

[cgnieder]

The columnwidth equals (textwidth - columnsep)/2:

Code: Select all

\documentclass[twocolumn]{article}
\begin{document}

\the\textwidth

\the\columnwidth

\the\columnsep

\end{document}

twocolumn.png (2.89 KiB) Viewed 20215 times

From the LaTeX kernel latex.ltx:

Code: Select all

\def \twocolumn {%
  \clearpage
  \global\columnwidth\textwidth
  \global\advance\columnwidth-\columnsep
  \global\divide\columnwidth\tw@
  ...

Regards

[cgnieder]

Here's a possibility how to set the columns:

Code: Select all

\documentclass[twocolumn]{article}
\usepackage{lipsum}% for dummy text
\setlength\textwidth{\dimexpr (3in -1in/16)*2 + 3in/8\relax}
\setlength\columnsep{\dimexpr 3in/8\relax}
\begin{document}

\lipsum

\end{document}

And here's another one:

Code: Select all

\documentclass[twocolumn]{article}
\usepackage{lipsum}
\usepackage[twocolumn,textwidth=16.31cm,columnsep=.81cm]{geometry}

\begin{document}

\lipsum

\end{document}

Regards

[dasatti]

Great. It solved my issue. Thank you very much for the help .