# Tag Info

## Hot answers tagged symbols

5

If you can find the appropriate black symbol, then it can be colored easily: \documentclass{article} \usepackage{amssymb} \usepackage{xcolor} \begin{document} $\triangledown \blacktriangledown \begingroup \color{blue} \blacktriangledown \endgroup$ \end{document} If the symbol is a math symbol, then the color should be set via: ...

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May be the “unicode way”: \documentclass{scrartcl} \usepackage[T1]{fontenc} \usepackage[utf8]{inputenc} \DeclareUnicodeCharacter{00B7}{\ifmmode\cdot\else\textperiodcentered\fi} \begin{document} I'm new to \LaTeX, and I have no idea how to type this ·; in \LaTeX. \end{document} If you don't want to use the unicode point in \DeclareUnicodeCharacter you ...

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A possible way: \documentclass[12pt]{article} \usepackage{amsmath,amssymb} \usepackage[dvipsnames]{xcolor} \usepackage[geometry]{ifsym} \begin{document} Example: {\color{SeaGreen}\FilledBigTriangleDown} \end{document}

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I used Detexify to find the answer. \usepackage{dsfont} \mathds{R} Use this in math mode.

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This may not be the best solution (spacing seems off to me), but you can turn \leftrightarrows into a math operator and turn on limits: \documentclass{article} \usepackage{amssymb} \newcommand\weird{\mathop\leftrightarrows\limits} \begin{document} $\weird^3_f$ \end{document}

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Here is another solution with tikz-cd: % arara: pdflatex \documentclass{article} \usepackage{tikz-cd} \begin{document} $\begin{tikzcd} A \arrow[shift left=2pt]{r}{e} & B\arrow[shift left=2pt]{l}{c} \end{tikzcd}$ \end{document} And yet another one with unicode-math and substack: % arara: lualatex \documentclass{article} ...

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Are you using the arrows to show a chemical reaction? Then you might be interested in knowing that you can use the mhchem package which simplifies writing reactions. It gives the same result as Amar's code but you don't have to include all the extra definitions yourself. I used the option arrows=pgf to get arrow heads more like the ones in your picture. ...

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I have found five possible ways to do this, out of which 2 match your requirements; however, the arrows are not extensible in those! Further information can be found in the code itself. Note: No matter which method you choose the alignment just isn't right in all of them! \documentclass{article} \usepackage{amsmath} \usepackage{amssymb} ...

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I have found that Latex has a symbol for a star which is the command \bigstar. http://latex.wikia.com/wiki/List_of_LaTeX_symbols So using the follow the $\mathbf{A}_k^{\bigstar}$ produce $$\mathbf{A}_k^{\bigstar}$$

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I was always taught that the dollar sign was originally created as a superposition of "U" and "S", a uniquely American symbol. Thus, for a really old version of the symbol, I build it here from scratch. Here, I show the serif and sans versions of the "S". \documentclass{article} \usepackage{stackengine,graphicx} \def\origdollar{% ...

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