[Python-checkins] r73636 - in python/branches/py3k/Doc: library/math.rst library/sqlite3.rst library/turtle.rst tutorial/inputoutput.rst tutorial/introduction.rst tutorial/stdlib2.rst
mark.dickinson
python-checkins at python.org
Sun Jun 28 22:59:43 CEST 2009
Author: mark.dickinson
Date: Sun Jun 28 22:59:42 2009
New Revision: 73636
Log:
Issue #6354: More fixes for code examples involving the repr of a float.
Modified:
python/branches/py3k/Doc/library/math.rst
python/branches/py3k/Doc/library/sqlite3.rst
python/branches/py3k/Doc/library/turtle.rst
python/branches/py3k/Doc/tutorial/inputoutput.rst
python/branches/py3k/Doc/tutorial/introduction.rst
python/branches/py3k/Doc/tutorial/stdlib2.rst
Modified: python/branches/py3k/Doc/library/math.rst
==============================================================================
--- python/branches/py3k/Doc/library/math.rst (original)
+++ python/branches/py3k/Doc/library/math.rst Sun Jun 28 22:59:42 2009
@@ -82,7 +82,7 @@
loss of precision by tracking multiple intermediate partial sums::
>>> sum([.1, .1, .1, .1, .1, .1, .1, .1, .1, .1])
- 0.99999999999999989
+ 0.9999999999999999
>>> fsum([.1, .1, .1, .1, .1, .1, .1, .1, .1, .1])
1.0
Modified: python/branches/py3k/Doc/library/sqlite3.rst
==============================================================================
--- python/branches/py3k/Doc/library/sqlite3.rst (original)
+++ python/branches/py3k/Doc/library/sqlite3.rst Sun Jun 28 22:59:42 2009
@@ -81,7 +81,7 @@
>>> for row in c:
... print(row)
...
- (u'2006-01-05', u'BUY', u'RHAT', 100, 35.140000000000001)
+ (u'2006-01-05', u'BUY', u'RHAT', 100, 35.14)
(u'2006-03-28', u'BUY', u'IBM', 1000, 45.0)
(u'2006-04-06', u'SELL', u'IBM', 500, 53.0)
(u'2006-04-05', u'BUY', u'MSOFT', 1000, 72.0)
@@ -591,7 +591,7 @@
>>> type(r)
<type 'sqlite3.Row'>
>>> r
- (u'2006-01-05', u'BUY', u'RHAT', 100.0, 35.140000000000001)
+ (u'2006-01-05', u'BUY', u'RHAT', 100.0, 35.14)
>>> len(r)
5
>>> r[2]
Modified: python/branches/py3k/Doc/library/turtle.rst
==============================================================================
--- python/branches/py3k/Doc/library/turtle.rst (original)
+++ python/branches/py3k/Doc/library/turtle.rst Sun Jun 28 22:59:42 2009
@@ -881,7 +881,7 @@
>>> tup = (0.2, 0.8, 0.55)
>>> turtle.pencolor(tup)
>>> turtle.pencolor()
- (0.20000000000000001, 0.80000000000000004, 0.5490196078431373)
+ (0.2, 0.8, 0.5490196078431373)
>>> colormode(255)
>>> turtle.pencolor()
(51, 204, 140)
Modified: python/branches/py3k/Doc/tutorial/inputoutput.rst
==============================================================================
--- python/branches/py3k/Doc/tutorial/inputoutput.rst (original)
+++ python/branches/py3k/Doc/tutorial/inputoutput.rst Sun Jun 28 22:59:42 2009
@@ -52,10 +52,10 @@
'Hello, world.'
>>> repr(s)
"'Hello, world.'"
- >>> str(0.1)
- '0.1'
- >>> repr(0.1)
- '0.10000000000000001'
+ >>> str(1.0/7.0)
+ '0.142857142857'
+ >>> repr(1.0/7.0)
+ '0.14285714285714285'
>>> x = 10 * 3.25
>>> y = 200 * 200
>>> s = 'The value of x is ' + repr(x) + ', and y is ' + repr(y) + '...'
Modified: python/branches/py3k/Doc/tutorial/introduction.rst
==============================================================================
--- python/branches/py3k/Doc/tutorial/introduction.rst (original)
+++ python/branches/py3k/Doc/tutorial/introduction.rst Sun Jun 28 22:59:42 2009
@@ -56,7 +56,7 @@
>>> (50-5*6)/4
5.0
>>> 8/5 # Fractions aren't lost when dividing integers
- 1.6000000000000001
+ 1.6
Note: You might not see exactly the same result; floating point results can
differ from one machine to another. We will say more later about controlling
Modified: python/branches/py3k/Doc/tutorial/stdlib2.rst
==============================================================================
--- python/branches/py3k/Doc/tutorial/stdlib2.rst (original)
+++ python/branches/py3k/Doc/tutorial/stdlib2.rst Sun Jun 28 22:59:42 2009
@@ -359,10 +359,10 @@
becomes significant if the results are rounded to the nearest cent::
>>> from decimal import *
- >>> Decimal('0.70') * Decimal('1.05')
- Decimal("0.7350")
- >>> .70 * 1.05
- 0.73499999999999999
+ >>> round(Decimal('0.70') * Decimal('1.05'), 2)
+ Decimal('0.74')
+ >>> round(.70 * 1.05, 2)
+ 0.73
The :class:`Decimal` result keeps a trailing zero, automatically inferring four
place significance from multiplicands with two place significance. Decimal
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