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-rw-r--r--Master/texmf-dist/tex/latex/base/fontmath.ltx14
1 files changed, 9 insertions, 5 deletions
diff --git a/Master/texmf-dist/tex/latex/base/fontmath.ltx b/Master/texmf-dist/tex/latex/base/fontmath.ltx
index 1e946943c9a..4b595a58f04 100644
--- a/Master/texmf-dist/tex/latex/base/fontmath.ltx
+++ b/Master/texmf-dist/tex/latex/base/fontmath.ltx
@@ -37,7 +37,7 @@
%%
%%% From File: fontdef.dtx
\ProvidesFile{fontmath.ltx}
- [2016/12/03 v3.0a LaTeX Kernel
+ [2018/09/24 v3.0b LaTeX Kernel
(Math
font setup)]
\typeout{=== Don't modify this file, use a .cfg file instead ===^^J}
@@ -506,10 +506,14 @@
\def\mathsterling{\mathit{\mathchar"7024}}
\def\mathunderscore{\kern.06em\vbox{\hrule\@width.3em}}
\def\mathellipsis{\mathinner{\ldotp\ldotp\ldotp}}%
-\def\big#1{{\hbox{$\left#1\vbox to8.5\p@{}\right.\n@space$}}}
-\def\Big#1{{\hbox{$\left#1\vbox to11.5\p@{}\right.\n@space$}}}
-\def\bigg#1{{\hbox{$\left#1\vbox to14.5\p@{}\right.\n@space$}}}
-\def\Bigg#1{{\hbox{$\left#1\vbox to17.5\p@{}\right.\n@space$}}}
+\def\big#1{\leavevmode@ifvmode
+ {\hbox{$\left#1\vbox to8.5\p@{}\right.\n@space$}}}
+\def\Big#1{\leavevmode@ifvmode
+ {\hbox{$\left#1\vbox to11.5\p@{}\right.\n@space$}}}
+\def\bigg#1{\leavevmode@ifvmode
+ {\hbox{$\left#1\vbox to14.5\p@{}\right.\n@space$}}}
+\def\Bigg#1{\leavevmode@ifvmode
+ {\hbox{$\left#1\vbox to17.5\p@{}\right.\n@space$}}}
\def\n@space{\nulldelimiterspace\z@ \m@th}
\def\operator@font{\mathgroup\symoperators}
\thinmuskip=3mu