Mention math.degrees() and math.radians()
Other minor rewrites
diff --git a/Doc/whatsnew/whatsnew23.tex b/Doc/whatsnew/whatsnew23.tex
index 8ff32e4..cb5d6fd 100644
--- a/Doc/whatsnew/whatsnew23.tex
+++ b/Doc/whatsnew/whatsnew23.tex
@@ -293,14 +293,13 @@
clearly a truth value.
Python's Booleans were not added for the sake of strict type-checking.
-A very strict language such as Pascal
-% XXX is Pascal the right example here?
-would also prevent you performing arithmetic with Booleans, and would
-require that the expression in an \keyword{if} statement always
-evaluate to a Boolean. Python is not this strict, and it never will
-be. (\pep{285} explicitly says this.) So you can still use any
-expression in an \keyword{if}, even ones that evaluate to a list or
-tuple or some random object, and the Boolean type is a subclass of the
+A very strict language such as Pascal would also prevent you
+performing arithmetic with Booleans, and would require that the
+expression in an \keyword{if} statement always evaluate to a Boolean.
+Python is not this strict, and it never will be. (\pep{285}
+explicitly says so.) So you can still use any expression in an
+\keyword{if}, even ones that evaluate to a list or tuple or some
+random object, and the Boolean type is a subclass of the
\class{int} class, so arithmetic using a Boolean still works.
\begin{verbatim}
@@ -382,14 +381,20 @@
Memory allocated with one API must not be freed with the other API.
\begin{itemize}
- \item To allocate and free an undistinguished chunk of memory, use
- \cfunction{PyMem_Malloc()}, \cfunction{PyMem_Realloc()},
- \cfunction{PyMem_Free()}, and the other \cfunction{PyMem_*}
- functions.
+ \item To allocate and free an undistinguished chunk of memory using
+ Python's allocator, use
+ \cfunction{PyMem_Malloc()}, \cfunction{PyMem_Realloc()}, and
+ \cfunction{PyMem_Free()}.
+
+ \item In rare cases you may want to avoid using Python's allocator
+ in order to allocate a chunk of memory;
+ use \cfunction{PyObject_Malloc}, \cfunction{PyObject_Realloc},
+ and \cfunction{PyObject_Free}.
\item To allocate and free Python objects,
use \cfunction{PyObject_New()}, \cfunction{PyObject_NewVar()}, and
\cfunction{PyObject_Del()}.
+
\end{itemize}
Thanks to lots of work by Tim Peters, pymalloc in 2.3 also provides
@@ -492,6 +497,13 @@
>>>
\end{verbatim}
+\item Two new functions in the \module{math} module,
+\function{degrees(\var{rads})} and \function{radians(\var{degs})},
+convert between radians and degrees. Other functions in the
+\module{math} module such as
+\function{math.sin()} and \function{math.cos()} have always required
+input values measured in radians. (Contributed by Raymond Hettinger.)
+
\item Two new functions, \function{killpg()} and \function{mknod()},
were added to the \module{posix} module that underlies the \module{os}
module.