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10

If you are happy with harpoons, you can use xleftrightharpoons from mathtools \documentclass[12pt,letterpaper]{article} \usepackage[utopia]{mathdesign} \usepackage{mathtools} \usepackage{mhchem} \usepackage{gensymb} \begin{document} \ce{A\rightleftarrows B} \ce{A\xleftrightharpoons{\rule{2cm}{0pt}} B} \ce{A\xleftrightharpoons{\hphantom{\hspace*{1cm}}} ...

7

Update: The following is now historical. The bug was fixed with MiKTeX update from 2014-04-10, cf. regarding entry in MiKTeX Bug Tracker: Map file missing for "esvect". There is a very simple reason: MiKTeX installs all of esvect, except esvect.map, that is required to use the type 1 versions of the fonts. It actually exists in esvect-src.tar.bz2, but the ...

5

I have two versions, depending on what you perhaps need. \documentclass{scrbook} \usepackage{amsmath} \begin{document} $\phi(\varepsilon) \xrightarrow[\varepsilon \to 0]{} 0$ $\lim_{\varepsilon \to 0} \phi(\varepsilon) = 0$ \end{document} I prefer the \lim style, it is mathematical cleaner, but that is also a matter of taste.

5

Here it is. This should start as the starting point. \documentclass{article} \usepackage{mathtools,amssymb} %% this is not needed. just for demo \usepackage{tikz} \usepackage{xparse} \NewDocumentCommand{\xrightarrows}{ O{}O{} }{% \mathrel{% \vcenter{\hbox{% \begin{tikzpicture} \node[minimum width=1cm,minimum height=1ex,anchor=south,align=center] ...

5

Based on code blatantly stolen from JLDiaz's answer: \documentclass{article} \usepackage{amsmath, amssymb} \usepackage{tikz} \usetikzlibrary{arrows,matrix,positioning}% For nice arrow tips \begin{document} \tikzset{ mymatrix/.style = { matrix of math nodes, nodes={minimum width=6ex}, } } \begin{tikzpicture} \matrix[mymatrix, ...

5

Another attempt where tikzmark is defined so that each term is a node and simply connect the node with \draw (A) to[bend left=angle] (B); \newcommand\tikzmark[1]{% \tikz[remember picture,baseline=(#1.base)] \node[inner sep=0,outer sep=3pt] (#1) {#1}; } Code \documentclass[border=2cm]{standalone} \usepackage{amsmath} \usepackage{tikz} ...

5

You can use \xRightarrow from mathtools: \documentclass[12pt, a4paper, english]{article} \usepackage[T1]{fontenc} \usepackage[latin9]{inputenc} \usepackage{mathtools} \usepackage{babel} \begin{document} $$\xRightarrow{\text{l'Hopital's rule}}$$ \end{document} It has the syntax: \xRightarrow[below]{above}

4

If you are willing to use chemfig you can easily control the arrow attributes: \documentclass[12pt,letterpaper]{article} \usepackage[utopia]{mathdesign} \usepackage{amsmath} \usepackage{mhchem} \usepackage{gensymb} \usepackage{chemfig} \begin{document} \ce{A\rightleftarrows B} \schemestart A\arrow{<=>}B \schemestop ...

3

Would this be what you seek? You code is incompleted where this solution added some in order to get the output you posted. Code \documentclass[border=10pt]{standalone} \usepackage{tikz} \usetikzlibrary{positioning,intersections,calc,fit} \tikzset{ excited/.style={circle,thick,draw=black,fill=blue!50,minimum size=6mm}, ...

3

Choose the one you like: % arara: pdflatex \documentclass{beamer} \usepackage{marvosym} % \MVRIGHTarrow \usepackage{stmaryrd} % \shortrightarrow \usepackage{textcomp} % \textrightarrow \begin{document} \begin{frame} \begin{itemize} \item This \MVRightarrow{} that \item This $\shortrightarrow$ that \item ...

2


2

If the text you want to place above and below is short then the following is one way to use them: \documentclass{article} \usepackage{stackrel,amssymb} \begin{document} $$V \stackrel[\beta]{\alpha}{\leftrightarrows} W$$ \end{document}

1

I decided to put this as an answer seeing as someone else might run into the same if they are using the same PDF viewer(evince) as I was. I noticed that when my PDF was viewed in chrome, the arrowheads appeared. In evince at 100% zoom, there were none. If I zoomed in to roughly 250%, they would appear. I am not sure why this happens, but if anyone else runs ...

1

Converting my comment into an answer: On a curved path, the node specification must follow to. So the relevant line in your example should be: \draw[->] (C3.north) to[out=120, in=145] node[below] {<label text>} ([shift=(up:.3)] wa.west); Also note that many of the libraries you've loaded are not required for this particular example; just chains ...

1

One option would be to scale it (and change the shorten value accordingly): \documentclass{article} \usepackage{tikz} \usetikzlibrary{arrows, decorations.markings} \tikzset{ vecArrow/.style={ thick, decoration={markings,mark=at position 1 with {\arrow[scale=2,thin]{open triangle 60}}}, double distance=1.4pt, shorten >= 10.5pt, preaction = ...

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