diff --git a/lib/matplotlib/mathtext.py b/lib/matplotlib/mathtext.py
index 90e45a3c4d75..78c9f4f75f81 100644
--- a/lib/matplotlib/mathtext.py
+++ b/lib/matplotlib/mathtext.py
@@ -2504,17 +2504,22 @@ def symbol(self, s, loc, toks):
break
# Binary operators at start of string should not be spaced
if (c in self._binary_operators and
- (len(s[:loc].split()) == 0 or prev_char == '{')):
+ (len(s[:loc].split()) == 0 or prev_char == '{' or
+ prev_char in self._left_delim)):
return [char]
else:
- return [Hlist( [self._make_space(0.2),
- char,
- self._make_space(0.2)] ,
+ return [Hlist([self._make_space(0.2),
+ char,
+ self._make_space(0.2)] ,
do_kern = True)]
elif c in self._punctuation_symbols:
- return [Hlist( [char,
- self._make_space(0.2)] ,
- do_kern = True)]
+ # Do not space dots as decimal separators
+ if (c == '.' and s[loc - 1].isdigit() and s[loc + 1].isdigit()):
+ return [char]
+ else:
+ return [Hlist([char,
+ self._make_space(0.2)],
+ do_kern = True)]
return [char]
snowflake = symbol
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