diff --git a/Doc/api/api.tex b/Doc/api/api.tex
index f75768a9f10..227698ac570 100644
--- a/Doc/api/api.tex
+++ b/Doc/api/api.tex
@@ -1625,22 +1625,107 @@ expression \samp{\var{o1} >> \var{o2}}.
 
 
 \begin{cfuncdesc}{PyObject*}{PyNumber_And}{PyObject *o1, PyObject *o2}
-Returns the result of ``anding'' \var{o2} and \var{o2} on success and
-\NULL{} on failure. This is the equivalent of the Python
-expression \samp{\var{o1} and \var{o2}}.
+Returns the ``bitwise and'' of \var{o2} and \var{o2} on success and
+\NULL{} on failure. This is the equivalent of the Python expression
+\samp{\var{o1} \& \var{o2}}.
 \end{cfuncdesc}
 
 
 \begin{cfuncdesc}{PyObject*}{PyNumber_Xor}{PyObject *o1, PyObject *o2}
-Returns the bitwise exclusive or of \var{o1} by \var{o2} on success,
+Returns the ``bitwise exclusive or'' of \var{o1} by \var{o2} on success,
 or \NULL{} on failure.  This is the equivalent of the Python
 expression \samp{\var{o1} \^{ }\var{o2}}.
 \end{cfuncdesc}
 
 \begin{cfuncdesc}{PyObject*}{PyNumber_Or}{PyObject *o1, PyObject *o2}
-Returns the result of \var{o1} and \var{o2} on success, or \NULL{} on
-failure.  This is the equivalent of the Python expression
-\samp{\var{o1} or \var{o2}}.
+Returns the ``bitwise or'' of \var{o1} and \var{o2} on success, or
+\NULL{} on failure.  This is the equivalent of the Python expression
+\samp{\var{o1} | \var{o2}}.
+\end{cfuncdesc}
+
+
+\begin{cfuncdesc}{PyObject*}{PyNumber_InPlaceAdd}{PyObject *o1, PyObject *o2}
+Returns the result of adding \var{o1} and \var{o2}, or \NULL{} on failure. 
+The operation is done \emph{in-place} when \var{o1} supports it.  This is the
+equivalent of the Python expression \samp{\var{o1} += \var{o2}}.
+\end{cfuncdesc}
+
+
+\begin{cfuncdesc}{PyObject*}{PyNumber_InPlaceSubtract}{PyObject *o1, PyObject *o2}
+Returns the result of subtracting \var{o2} from \var{o1}, or
+\NULL{} on failure.  The operation is done \emph{in-place} when \var{o1}
+supports it.  This is the equivalent of the Python expression \samp{\var{o1}
+-= \var{o2}}.
+\end{cfuncdesc}
+
+
+\begin{cfuncdesc}{PyObject*}{PyNumber_InPlaceMultiply}{PyObject *o1, PyObject *o2}
+Returns the result of multiplying \var{o1} and \var{o2}, or \NULL{} on
+failure.  The operation is done \emph{in-place} when \var{o1} supports it. 
+This is the equivalent of the Python expression \samp{\var{o1} *= \var{o2}}.
+\end{cfuncdesc}
+
+
+\begin{cfuncdesc}{PyObject*}{PyNumber_InPlaceDivide}{PyObject *o1, PyObject *o2}
+Returns the result of dividing \var{o1} by \var{o2}, or \NULL{} on failure. 
+The operation is done \emph{in-place} when \var{o1} supports it. This is the
+equivalent of the Python expression \samp{\var{o1} /= \var{o2}}.
+\end{cfuncdesc}
+
+
+\begin{cfuncdesc}{PyObject*}{PyNumber_InPlaceRemainder}{PyObject *o1, PyObject *o2}
+Returns the remainder of dividing \var{o1} by \var{o2}, or \NULL{} on
+failure.  The operation is done \emph{in-place} when \var{o1} supports it. 
+This is the equivalent of the Python expression \samp{\var{o1} \%= \var{o2}}.
+\end{cfuncdesc}
+
+
+\begin{cfuncdesc}{PyObject*}{PyNumber_InPlacePower}{PyObject *o1, PyObject *o2, PyObject *o3}
+See the built-in function \function{pow()}\bifuncindex{pow}.  Returns
+\NULL{} on failure.  The operation is done \emph{in-place} when \var{o1}
+supports it.  This is the equivalent of the Python expression \samp{\var{o1}
+**= \var{o2}} when o3 is \cdata{Py_None}, or an in-place variant of
+\samp{pow(\var{o1}, \var{o2}, var{o3})} otherwise. If \var{o3} is to be
+ignored, pass \cdata{Py_None} in its place (passing \NULL{} for \var{o3}
+would cause an illegal memory access).
+\end{cfuncdesc}
+
+\begin{cfuncdesc}{PyObject*}{PyNumber_InPlaceLshift}{PyObject *o1, PyObject *o2}
+Returns the result of left shifting \var{o1} by \var{o2} on success, or
+\NULL{} on failure.  The operation is done \emph{in-place} when \var{o1}
+supports it.  This is the equivalent of the Python expression \samp{\var{o1}
+<<= \var{o2}}.
+\end{cfuncdesc}
+
+
+\begin{cfuncdesc}{PyObject*}{PyNumber_InPlaceRshift}{PyObject *o1, PyObject *o2}
+Returns the result of right shifting \var{o1} by \var{o2} on success, or
+\NULL{} on failure.  The operation is done \emph{in-place} when \var{o1}
+supports it.  This is the equivalent of the Python expression \samp{\var{o1}
+>>= \var{o2}}.
+\end{cfuncdesc}
+
+
+\begin{cfuncdesc}{PyObject*}{PyNumber_InPlaceAnd}{PyObject *o1, PyObject *o2}
+Returns the ``bitwise and'' of \var{o2} and \var{o2} on success
+and \NULL{} on failure. The operation is done \emph{in-place} when \var{o1}
+supports it.  This is the equivalent of the Python expression \samp{\var{o1}
+\&= \var{o2}}.
+\end{cfuncdesc}
+
+
+\begin{cfuncdesc}{PyObject*}{PyNumber_InPlaceXor}{PyObject *o1, PyObject *o2}
+Returns the ``bitwise exclusive or'' of \var{o1} by \var{o2} on success, or
+\NULL{} on failure.  The operation is done \emph{in-place} when \var{o1}
+supports it.  This is the equivalent of the Python expression \samp{\var{o1}
+\^= \var{o2}}.
+\end{cfuncdesc}
+
+\begin{cfuncdesc}{PyObject*}{PyNumber_InPlaceOr}{PyObject *o1, PyObject *o2}
+Returns the ``bitwise or'' of \var{o1} and \var{o2} on success, or \NULL{}
+on failure.  The operation is done \emph{in-place} when \var{o1} supports
+it.  This is the equivalent of the Python expression \samp{\var{o1} |=
+\var{o2}}.
 \end{cfuncdesc}
 
 \begin{cfuncdesc}{PyObject*}{PyNumber_Coerce}{PyObject **p1, PyObject **p2}
@@ -1703,6 +1788,20 @@ Return the result of repeating sequence object
 equivalent of the Python expression \samp{\var{o} * \var{count}}.
 \end{cfuncdesc}
 
+\begin{cfuncdesc}{PyObject*}{PySequence_InPlaceConcat}{PyObject *o1, PyObject *o2}
+Return the concatenation of \var{o1} and \var{o2} on success, and \NULL{} on
+failure.  The operation is done \emph{in-place} when \var{o1} supports it. 
+This is the equivalent of the Python expression \samp{\var{o1} += \var{o2}}.
+\end{cfuncdesc}
+
+
+\begin{cfuncdesc}{PyObject*}{PySequence_InPlaceRepeat}{PyObject *o, int count}
+Return the result of repeating sequence object \var{o} \var{count} times, or
+\NULL{} on failure.  The operation is done \emph{in-place} when \var{o}
+supports it.  This is the equivalent of the Python expression \samp{\var{o}
+*= \var{count}}.
+\end{cfuncdesc}
+
 
 \begin{cfuncdesc}{PyObject*}{PySequence_GetItem}{PyObject *o, int i}
 Return the \var{i}th element of \var{o}, or \NULL{} on failure. This