traverseda
/
cpython
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Merged revisions 83732 via svnmerge from 

svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r83732 | mark.dickinson | 2010-08-04 19:42:43 +0100 (Wed, 04 Aug 2010) | 3 lines

  Issue #9498:  Add reference to sys.float_info from 'numeric types' docs.
  Thanks Yitz Gale.
........
This commit is contained in:
Mark Dickinson 2010-08-04 18:43:36 +00:00
parent fe2f4ecc14
commit e56a386e0e
1 changed files with 9 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
Doc/library/stdtypes.rst
View File

@ -216,14 +216,15 @@ Numeric Types --- :class:`int`, :class:`float`, :class:`complex`
There are three distinct numeric types: :dfn:`integers`, :dfn:`floating There are three distinct numeric types: :dfn:`integers`, :dfn:`floating
point numbers`, and :dfn:`complex numbers`. In addition, Booleans are a point numbers`, and :dfn:`complex numbers`. In addition, Booleans are a
subtype of integers. Integers have unlimited precision. Floating point subtype of integers. Integers have unlimited precision. Floating point
numbers are implemented using :ctype:`double` in C---all bets on their numbers are usually implemented using :ctype:`double` in C; information
precision are off unless you happen to know the machine you are working about the precision and internal representation of floating point
with. Complex numbers have a real and imaginary part, which are each numbers for the machine on which your program is running is available
implemented using :ctype:`double` in C. To extract these parts from a in :data:`sys.float_info`. Complex numbers have a real and imaginary
complex number *z*, use ``z.real`` and ``z.imag``. (The standard library part, which are each a floating point number. To extract these parts
includes additional numeric types, :mod:`fractions` that hold rationals, from a complex number *z*, use ``z.real`` and ``z.imag``. (The standard
and :mod:`decimal` that hold floating-point numbers with user-definable library includes additional numeric types, :mod:`fractions` that hold
precision.) rationals, and :mod:`decimal` that hold floating-point numbers with
user-definable precision.)
.. index:: .. index::
pair: numeric; literals pair: numeric; literals