$\vec{0}$ and $\overrightarrow{0}$ generate the following:
The first arrow is decentered (it assumes an italic font), the second one is clearly too large. How to get an upright version of \vec?
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2 Answers
The esvect package provides nice vector arrows in most cases:
The command is \vv (not \vec) and it provides a centered, non-slanted (better 'upright') arrow, which is shorter than the arrow given by \overrightarrow.
\documentclass{article}
\usepackage{mathtools}
\usepackage{esvect}
\begin{document}
\begin{tabular}{ll}
esvect: & $\vv{0}$ \\
amsmath: & $\overrightarrow{0}$ \\
standard: & $\vec{0}$
\end{tabular}
\end{document}
From Bernard's comment: esvect defines 8 different arrow (head) types, which can be chosen by \usepackage[a]{esvect} to \usepackage[h]{esvect}. Omitting the optional argument will use the (default) d variant
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1And here I was expecting one of your amazing macros! Nah, just kidding. Easiest answer = best answer. Sep 6, 2015 at 10:22
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@1010011010: My amazing macros? ;-) Thanks anyway!– user31729Sep 6, 2015 at 10:25
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@Christian Hupfer: You might add esvect defines $8$ different arrow tips.– BernardSep 6, 2015 at 11:20
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@Bernard: Good suggestion! I'll do immediately.– user31729Sep 6, 2015 at 11:24
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i think
\overrightarrowisn't the right answer in any event. what is really needed is an arrow with an "upright" (e.g. "not italic") arrowhead. something to think about. Sep 6, 2015 at 13:02
May be for this particular case have \0 defined
\newcommand\0{\kern-1.2pt\vec{\kern1.2pt 0}}
In that case whatever definition you choose, you can change it at the end if there's a more practical way.
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\0looks strange, but seems to work (+1)– user31729Sep 6, 2015 at 16:15 -
Apart from proposing this particular definition to remove the displacement of the arrow, what I meant is that if one defines
\0and then uses it along the document, at the end he can choose wether he prefers\vv{0}or any other definition.– ManuelSep 6, 2015 at 16:49