Merge pull request #13944 from anntzer/pgfunicodemath

jklymak · web-flow · commit 11f0181e9e36 · 2019-04-13T19:40:51.000-07:00
Document how to support unicode minus in pgf backend.
diff --git a/lib/matplotlib/backends/backend_pgf.py b/lib/matplotlib/backends/backend_pgf.py
@@ -790,10 +790,17 @@ def _print_pgf_to_fh(self, fh, *args,
 %% Make sure the required packages are loaded in your preamble
 %%   \\usepackage{pgf}
 %%
+%% and, on pdftex
+%%   \\usepackage[utf8]{inputenc}\\DeclareUnicodeCharacter{2212}{-}
+%%
+%% or, on luatex and xetex
+%%   \\usepackage{unicode-math}
+%%
 %% Figures using additional raster images can only be included by \\input if
 %% they are in the same directory as the main LaTeX file. For loading figures
 %% from other directories you can use the `import` package
 %%   \\usepackage{import}
+%%
 %% and then include the figures with
 %%   \\import{<path to file>}{<filename>.pgf}
 %%
