Re: [dk-tug] Angivelse af intervaller

Ahh, nice. Tak for det. Vil lige udvide den med en skaleringsnøgle

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-----Original Message-----
From: Martin Heller [[email protected]]
Received: lørdag, 18 maj 2013, 21:44
To: [email protected] [[email protected]]
Subject: Re: [dk-tug] Angivelse af intervaller

Lars Madsen <daleif <at> imf.au.dk> writes:

>
> Jeg har ikke lige den store erfaring med pgfkeys
>
> Martin, har du noget imod at lave en grundlæggende makro, bare så man kan
se hvordan det er pgfkeys
> anvendes i denne forbindelse?

\documentclass[12pt]{article}
\usepackage{pgfkeys}
\usepackage{amsmath}

\pgfkeys{/interval/.is family,/interval,
  open fence/.initial={[},
  close fence/.initial={]},
  open left/.style={open fence={]}},
  open right/.style={close fence={[}},
  open/.style={open left,open right},
}

\newcommand\interval[3][]{%
  \begingroup
  \pgfkeys{interval,#1}%
  \mathopen{\pgfkeysvalueof{/interval/open fence}}%
  #2,#3%
  \mathclose{\pgfkeysvalueof{/interval/close fence}}%
  \endgroup
}

\begin{document}


\begin{align}
\interval{a}{b}\\
\interval[open]{a}{b}\\
\interval[open left]{a}{b}\\
\interval[open right]{a}{b}\\
\interval[close fence={)}]{a}{b}
\end{align}


\end{document}


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