Text Formatting ⇒ Latex: Definitions on the left of the page?

[AlexanderNY]

Back in my grad-school days, I used LaTeX 2.09 to create summaries of the
topics we studied.

A simple example can be found in the attachment.

I used to have a custom environment which allowed things like Definitions
to be placed on the left of the page. Unfortunately, I forgot how to do this.

Any ideas?

Regards,

AlexanderNY

[cgnieder]

Hi Alexander,

Welcome to the LaTeX community!

Back in my grad-school days, I used LaTeX 2.09 to create summaries of the
topics we studied.

So it's been a while? LaTeX2.09 has been superseded by LaTeX2e about twenty years ago...

A simple example can be found in the attachment.

I used to have a custom environment which allowed things like Definitions
to be placed on the left of the page. Unfortunately, I forgot how to do this.

Any ideas?

Regards,

AlexanderNY

Since I've never used 2.09 I'll show an example of how to do this with 2e:

Code: Select all

\documentclass{article}
\usepackage[utf8]{inputenc}

\usepackage{amsmath}
\renewcommand*\Re{\operatorname{Re}}
\renewcommand*\Im{\operatorname{Im}}

\newcommand*\mytitle[1]
  {\par\noindent\llap{\bfseries #1:\hspace*{\marginparsep}}\ignorespaces}

\usepackage{showframe}% show page dimensions
\begin{document}

\section{A Section Title}

\mytitle{Properties}
For all complex numbers the following properties hold:
\begin{enumerate}
  \item $(z^*)^* = z$
  \item $(zw)^* = z^*w^*$
  \item $(z +w)^* = z^* + w^*$
  \item $(z/w)^* = (z)^* /(w)^*$
  \item $z + z^* = 2 \Re(z)$
  \item $ z - z^* = 2i \Im(z)$
  \item $\arg(z^*) = - \arg(z)$
  \item $\arg(zw) = \arg(z) + \arg(w)$
  \item $\arg(z/w) = \arg(z) - \arg(w)$
\end{enumerate}

\mytitle{Euler}
$e^{inx} = \cos nx + i \sin nx$

\end{document}

Regards