buffers.texi: Fix typo in @math construct.

* buffers.texi (Buffers): Fix display of @math content by using
nested braces.  (Bug#16389)

Note that the HTML and plaintext output will use the curly braces
like 2^{61} -- but it's better than to have a wrong display of 2^61
in the PDF and printed versions.

2 files changed, 8 insertions, 3 deletions

diff --git a/doc/emacs/ChangeLog b/doc/emacs/ChangeLog
index b699ae4b65..8db5ab808c 100644
--- a/doc/emacs/ChangeLog
+++ b/doc/emacs/ChangeLog
@@ -1,3 +1,8 @@
+2014-01-07  Bastien Guerry  <[email protected]>
+
+	* buffers.texi (Buffers): Fix display of @math content by using
+	nested braces.  (Bug#16389)
+
 2014-01-07  Chong Yidong  <[email protected]>
 
 	* search.texi (Special Isearch): Document C-x 8 RET in isearch.
diff --git a/doc/emacs/buffers.texi b/doc/emacs/buffers.texi
index 9e544fe16f..695ea96c36 100644
--- a/doc/emacs/buffers.texi
+++ b/doc/emacs/buffers.texi
@@ -43,9 +43,9 @@ variables}---variables that can have a different value in each buffer.
   A buffer's size cannot be larger than some maximum, which is defined
 by the largest buffer position representable by @dfn{Emacs integers}.
 This is because Emacs tracks buffer positions using that data type.
-For typical 64-bit machines, this maximum buffer size is @math{2^61 -
-2} bytes, or about 2 EiB@.  For typical 32-bit machines, the maximum is
-usually @math{2^29 - 2} bytes, or about 512 MiB@.  Buffer sizes are
+For typical 64-bit machines, this maximum buffer size is @math{2^{61} - 2}
+bytes, or about 2 EiB@.  For typical 32-bit machines, the maximum is
+usually @math{2^{29} - 2} bytes, or about 512 MiB@.  Buffer sizes are
 also limited by the amount of memory in the system.
 
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