diff --git a/source/algorithms.tex b/source/algorithms.tex
index 9c74d5dfbb..17f05b5c14 100644
--- a/source/algorithms.tex
+++ b/source/algorithms.tex
@@ -3502,7 +3502,7 @@
 
 \pnum
 \complexity
-\bigoh{N\log(N)} comparisons, where $N = \tcode{last - first}$.
+\bigoh{N \log N} comparisons, where $N = \tcode{last - first}$.
 \end{itemdescr}
 
 \rSec3[stable.sort]{\tcode{stable_sort}}
@@ -3541,7 +3541,7 @@
 \complexity
 At most $N \log^2(N)$
 comparisons, where
-$N = \tcode{last - first}$, but only $N \log(N)$ comparisons if there is enough extra memory.
+$N = \tcode{last - first}$, but only $N \log N$ comparisons if there is enough extra memory.
 
 \pnum
 \remarks Stable~(\ref{algorithm.stable}).
@@ -4141,7 +4141,7 @@
 
 \pnum
 \complexity
-At most $N \log(N)$ swaps, where $N = \tcode{last - first}$,
+At most $N \log N$ swaps, where $N = \tcode{last - first}$,
 but only \bigoh{N} swaps if there is enough extra memory.
 Exactly
 \tcode{last - first}
@@ -4323,7 +4323,7 @@
 \tcode{(last - first) - 1}
 comparisons.
 If no additional memory is available, an algorithm with complexity
-$N \log(N)$ may be used, where $N = \tcode{last - first}$.
+$N \log N$ may be used, where $N = \tcode{last - first}$.
 
 \pnum
 \remarks Stable~(\ref{algorithm.stable}).
@@ -4670,7 +4670,7 @@
 or a new element added by
 \tcode{push_heap()},
 in
-\bigoh{\log(N)}
+\bigoh{\log N}
 time.
 \end{itemize}
 
@@ -4822,7 +4822,7 @@
 
 \pnum
 \complexity
-At most $N \log(N)$
+At most $N \log N$
 comparisons, where
 $N = \tcode{last - first}$.
 \end{itemdescr}
diff --git a/source/containers.tex b/source/containers.tex
index ac57a3f52b..c5c5004787 100644
--- a/source/containers.tex
+++ b/source/containers.tex
@@ -1778,7 +1778,7 @@
   inserts each element from the range \range{i}{j} if and only if there
   is no element with key equivalent to the key of that element in containers
   with unique keys; always inserts that element in containers with equivalent keys.  &
-  $N\log (\tcode{a.size()} + N)$, where $N$ has the value \tcode{distance(i, j)} \\ \rowsep
+  $N \log (\tcode{a.size()} + N)$, where $N$ has the value \tcode{distance(i, j)} \\ \rowsep
 
 \tcode{a.insert(il)}           &
   \tcode{void}                  &
@@ -5067,7 +5067,7 @@
 \pnum
 \complexity
 Approximately
-$N \log(N)$
+$N \log N$
 comparisons, where
 \tcode{N == size()}.
 \end{itemdescr}
@@ -5328,7 +5328,7 @@
 calls to the copy constructor of
 \tcode{T}
 and order
-$\log(N)$
+$\log N$
 reallocations if they are just input iterators.
 \end{itemdescr}
 
@@ -6208,7 +6208,7 @@
 Linear in $N$ if the range
 \range{first}{last}
 is already sorted using \tcode{comp}
-and otherwise $N \log{N}$, where $N$
+and otherwise $N \log N$, where $N$
 is \tcode{last - first}.
 \end{itemdescr}
 
@@ -6717,7 +6717,7 @@
 Linear in $N$ if the range
 \range{first}{last}
 is already sorted using \tcode{comp}
-and otherwise $N \log{N}$,
+and otherwise $N \log N$,
 where $N$ is
 \tcode{last - first}.
 \end{itemdescr}
@@ -7008,7 +7008,7 @@
 Linear in $N$ if the range
 \range{first}{last}
 is already sorted using \tcode{comp}
-and otherwise $N \log{N}$,
+and otherwise $N \log N$,
 where $N$ is
 \tcode{last - first}.
 \end{itemdescr}
@@ -7275,7 +7275,7 @@
 Linear in $N$
 if the range
 \range{first}{last}
-is already sorted using \tcode{comp} and otherwise $N \log{N}$,
+is already sorted using \tcode{comp} and otherwise $N \log N$,
 where $N$ is
 \tcode{last - first}.
 \end{itemdescr}