Adding text to plot that is a crystal direction

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Hey, so I want to add text to a plot that is a crystal direction. Sounds easy enough, right?
It's easy to do [110], but what if I want to do [-110]? If you are familiar with crystallography, you know that the negative sign should be above the 1. How can I do this?
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Star Strider
Star Strider on 10 Jan 2017
I doubt many here are familiar with crystallography. (I’m not.) Do you have an open-source (not behind a paywall) reference so we can possibly understand what you’re doing?

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Accepted Answer

Walter Roberson
Walter Roberson on 10 Jan 2017
text(xpos, ypos, '$\stackrel{-}{1} 1 0$','interpreter','latex')
or '$\bar{1} 1 0$' or '$\overline{1} 1 0$'
The shortest line is with \bar, then \stackrel, and \overline is longest.
The gap between the line and the digit appears to be smallest with \bar, then \overline, and largest with \stackrel
I find the \stackrel version easiest to read.

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