Where are the LaTex equations in plots coming from?

Hi,

How do packages like GR and likely others used by Plots manage to display LaTex equations without installing the Tex/LaTex package? Is there a really minimal LaTex installation that is used under the hood?

Tanks.

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Matplotlib has its own LaTeX-like math renderer: https://matplotlib.org/3.3.3/tutorials/text/mathtext.html

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GR has its own version of that code as well: https://github.com/sciapp/gr/blob/master/lib/gr/mathtex2.c

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Thanks.

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