articlelengthstwo-columnwidth
I'm writing an article with 2 columns. If my document is this:
\documentclass[10pt,a4paper, twocolumn]{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[
left=2.00cm,
right=2.00cm,
top=2.00cm,
bottom=2.00cm
]{geometry}
\usepackage{blindtext}
\begin{document}
\blinddocument
\end{document}
Is there a way tho know exactly the width of the column (see picture)? I need it for draw in others softwares using this lenght.
You can use the multicol package. Either you end a multicol environment before the equation and restart it after, or you define an environment like this:
\documentclass[parskip]{scrartcl}
\usepackage[margin=15mm]{geometry}
\usepackage{multicol}
\usepackage{lipsum}
\pagestyle{empty}
\newcommand{\OneColEqu}[1]{%
\end{multicols}%
\begin{equation}%
#1
\end{equation}%
\begin{multicols}{2}%
}
\begin{document}
\begin{multicols}{2}
\lipsum[1]
\end{multicols}
\begin{equation}
\int\limits_{x=0}^{x=5}(x^2+2x-3) dx = \left[ \frac{1}{3}x^3+x^2-3x+C \right]^{x=5}_{x=0} = \frac{125}{3}+25-15+C-C= \frac{155}{3}
\end{equation}
\begin{multicols}{2}
\lipsum[2]
\OneColEqu{\int\limits_{x=0}^{x=5}(x^2+2x-3) dx = \left[ \frac{1}{3}x^3+x^2-3x+C \right]^{x=5}_{x=0} = \frac{125}{3}+25-15+C-C= \frac{155}{3}}
\lipsum[3]
\end{multicols}
\end{document}
Both approches yield the same, but the own command probably is more convineant:
Edit 1: Putting the equation always on the bottom can be achieved by defining a custom float with the float package:
\documentclass[parskip]{scrartcl}
\usepackage[margin=15mm]{geometry}
\usepackage{multicol}
\usepackage{float}
\usepackage{lipsum}
\pagestyle{empty}
\floatstyle{plain}
\newfloat{twocolequfloat}{b}{zzz}
\floatname{twocolequfloat}{Equation}
\newcommand{\OneColEqu}[1]{%
\end{multicols}%
\begin{twocolequfloat}%
\ensuremath{\hfill #1 \hfill}%
\end{twocolequfloat}%
\begin{multicols}{2}%
}
\begin{document}
\begin{multicols}{2}
\lipsum[1-3]
\OneColEqu{\int\limits_{x=0}^{x=5}(x^2+2x-3) dx = \left[ \frac{1}{3}x^3+x^2-3x+C \right]^{x=5}_{x=0} = \frac{125}{3}+25-15+C-C= \frac{155}{3}}
\lipsum[3-7]
\OneColEqu{\int\limits_{x=0}^{x=5}(x^2+2x-3) dx = \left[ \frac{1}{3}x^3+x^2-3x+C \right]^{x=5}_{x=0} = \frac{125}{3}+25-15+C-C= \frac{155}{3}}
\lipsum[8-14]
\OneColEqu{\int\limits_{x=0}^{x=5}(x^2+2x-3) dx = \left[ \frac{1}{3}x^3+x^2-3x+C \right]^{x=5}_{x=0} = \frac{125}{3}+25-15+C-C= \frac{155}{3}}
\lipsum[15]
\end{multicols}
\end{document}
\floatstyle{plain} same stlye as LaTex (no rules around the float)\newfloat{twocolequfloat}{b}{zzz} new float twocolequfloat, which is always aligned bottom, for posiible use in listof... or something the file .zzz will be written\floatname{twocolequfloat}{Equation} name displaed e.g. if you use labelsThen we use this environment for our math:
\begin{twocolequfloat}% begin environment\ensuremath{\hfill #1 \hfill}% make sure formula set in mathmode, use \hfill to center it\end{twocolequfloat}% end environmentHowever, the formula will always be set to the bottom of the page. If your text ends after 20% of the page, the formula will be far away.
In www.latextemplates.com there are 3 nice general LaTeX templates for articles. One of these made with the scrartcl class have this layout:
Another good source is www.sharelatex.com. Among the 76 articles templates for submission to scientific journals or proceedings, several have a two column format. You can download or open and compile in ShareLaTeX.
In any case, as most code of article templates are interchangeable between the standard article class and others general article class (as paper, scrartcl, artikel, etc.) as well as in specific journal class (as svjour3, etc.) you can experiment easily with most classes with the same template replacing the first line (that is, change \docummentclass{article} by \docummentclass{paper} but search in each case in the documentation for specific options to add/remove for each class (for example, paper class have a \smalltableofcontents that you cannot use in the article class, but \tableofcontents work in any class).
Best Answer
The column width is stored in the length
\columnwidth. It's value can be turned into a text representation using\the\columnwidth. Either use this inside\message{...}to print it to the LaTeX compiler output and log file or directly in the text if you want. The value is in Points (pt) which are 1/72.27 of an inch. (Not that PDF and Postscript have points with 1/72 inches for simplify calculations. These are called "big points" (bp) in TeX.)Which gives me:
The column width is: 236.84843pt