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  • Re: Double harpoons?

    From Athel Cornish-Bowden@21:1/5 to All on Fri Sep 6 12:19:41 2024
    On 2024-09-06 09:28:22 +0000, db said:

    I want to write a reversible chemial reaction using
    what I call double harpoons, but they don't seem to
    exist in LaTeX. Or do they? Using \longdoublearrows
    doesn't quite make it.

    I have felt the same need and the same frustration at not finding a
    good solution.

    What I do is

    \newcommand {\reversible}{\hspace*{-0.08cm}\begin{array}{c} _\rightarrow\\[-0.17cm]
    ^\leftarrow\\
    \end{array}\hspace*{-0.08cm}}

    This does what I want, but not necessarily what you want.


    --
    Athel -- French and British, living in Marseilles for 37 years; mainly
    in England until 1987.

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  • From Ulrike Fischer@21:1/5 to All on Fri Sep 6 13:16:19 2024
    Am Fri, 6 Sep 2024 09:28:22 -0000 (UTC) schrieb db:

    I want to write a reversible chemial reaction using
    what I call double harpoons, but they don't seem to
    exist in LaTeX. Or do they? Using \longdoublearrows
    doesn't quite make it.

    \documentclass{article}
    \usepackage{chemformula}
    \begin{document}
    $\rightleftharpoons$

    \ch{N<>N} \ch{N<=>N} \ch{N>=<N} \ch{N<=>>N}

    \end{document}


    --
    Ulrike Fischer
    http://www.troubleshooting-tex.de/

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  • From Dr Engelbert Buxbaum@21:1/5 to All on Sun Sep 8 17:13:34 2024
    In article <vbehvm$p6bk$[email protected]>, [email protected]
    says...

    I want to write a reversible chemial reaction using
    what I call double harpoons, but they don't seem to
    exist in LaTeX. Or do they? Using \longdoublearrows
    doesn't quite make it.

    You can use the chemarrow package, it provides (amongst others) the \rightleftharpoons and \autorightleftharpoons{}{} commands. In the
    latter command, the length of the harpoons is adjusted to the text above
    and below them.

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    display terminals (VDTs) - Part 13: User guidance
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    actions can be taken, and the cause of the error.

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