summaryrefslogtreecommitdiffstats
path: root/Doc/tut
diff options
context:
space:
mode:
authorGuido van Rossum <guido@python.org>1996-08-23 15:35:47 (GMT)
committerGuido van Rossum <guido@python.org>1996-08-23 15:35:47 (GMT)
commit97662c89fa2b1629225cdb82d55df26a83778e04 (patch)
treef605d032b922954887dea8d4b8aa28dcad582f3c /Doc/tut
parentf8daa4f7d92225659f8baceb81a0a6569d96640e (diff)
downloadcpython-97662c89fa2b1629225cdb82d55df26a83778e04.zip
cpython-97662c89fa2b1629225cdb82d55df26a83778e04.tar.gz
cpython-97662c89fa2b1629225cdb82d55df26a83778e04.tar.bz2
Version number; started chapter on what's new in 1.4
Diffstat (limited to 'Doc/tut')
-rw-r--r--Doc/tut/tut.tex52
1 files changed, 50 insertions, 2 deletions
diff --git a/Doc/tut/tut.tex b/Doc/tut/tut.tex
index c510e69..d6f2dc1 100644
--- a/Doc/tut/tut.tex
+++ b/Doc/tut/tut.tex
@@ -215,8 +215,8 @@ and a copyright notice before printing the first prompt, e.g.:
\bcode\begin{verbatim}
python
-Python 1.3 (Oct 13 1995)
-Copyright 1991-1995 Stichting Mathematisch Centrum, Amsterdam
+Python 1.4b3 (Aug 25 1996) [GCC 2.7.0]
+Copyright 1991-1996 Stichting Mathematisch Centrum, Amsterdam
>>>
\end{verbatim}\ecode
@@ -3863,4 +3863,52 @@ notice them anyway :-)
\end{itemize}
+
+\chapter{New in Release 1.4}
+
+
+This chapter describes additions to the Python language and library in
+version 1.4.
+
+\begin{itemize}
+
+\item
+Power operator. \code{x**y} is equivalent to \code{pow(x, y)}.
+
+\item
+Complex numbers. Imaginary literals are writen with a \code{'j'}
+suffix (\code{'J'} is allowed for consistency.) Complex numbers with
+a nonzero real component are written as
+\code{(\var{real}+\var{imag}j)}. The usual arithmetic operators on
+complex numbers are supported, so that e.g. \code{1j**2} equals
+\code{-1.0}. Module \code{cmath} provides versions of all math
+functions that take complex arguments and return complex results.
+(Module \code{math} only supports real numbers, so that
+\code{math.sqrt(-1)} still raises a \code{ValueError} exception.)
+
+\item
+New indexing syntax. It is now possible to use a tuple as an indexing
+expression for a mapping object without parenthesizing it,
+e.g. \code{x[1, 2, 3]}.
+
+\item
+New slicing syntax. In support of the Numerical Python extension
+(distributed separately), slice indices of the form
+\code{x[lo:hi:stride]} are possible, multiple slice indices separated by
+commas are allowed, and an index position may be replaced by ellipses,
+as follows: \code{x[a, ..., z]}. There's also a new built-in function
+\code{slice(lo, hi, stride)} and a new built-in object
+\code{Ellipses}, which yield the same effect without using special
+syntax. None of the standard sequence types support indexing with
+slice objects or ellipses yet. Note that when any of these extensions
+are used, the mapping interface for indexing will be used.
+
+\item
+XXX More!!!
+
+\end{itemize}
+
+
+
+
\end{document}