Merged revisions 73636 via svnmerge from
svn+ssh://pythondev@www.python.org/python/branches/py3k ........ r73636 | mark.dickinson | 2009-06-28 21:59:42 +0100 (Sun, 28 Jun 2009) | 2 lines Issue #6354: More fixes for code examples involving the repr of a float. ........
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@ -82,7 +82,7 @@ Number-theoretic and representation functions
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loss of precision by tracking multiple intermediate partial sums::
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>>> sum([.1, .1, .1, .1, .1, .1, .1, .1, .1, .1])
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0.99999999999999989
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0.9999999999999999
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>>> fsum([.1, .1, .1, .1, .1, .1, .1, .1, .1, .1])
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1.0
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@ -81,7 +81,7 @@ This example uses the iterator form::
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>>> for row in c:
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... print(row)
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...
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(u'2006-01-05', u'BUY', u'RHAT', 100, 35.140000000000001)
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(u'2006-01-05', u'BUY', u'RHAT', 100, 35.14)
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(u'2006-03-28', u'BUY', u'IBM', 1000, 45.0)
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(u'2006-04-06', u'SELL', u'IBM', 500, 53.0)
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(u'2006-04-05', u'BUY', u'MSOFT', 1000, 72.0)
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@ -591,7 +591,7 @@ Now we plug :class:`Row` in::
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>>> type(r)
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<type 'sqlite3.Row'>
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>>> r
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(u'2006-01-05', u'BUY', u'RHAT', 100.0, 35.140000000000001)
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(u'2006-01-05', u'BUY', u'RHAT', 100.0, 35.14)
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>>> len(r)
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5
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>>> r[2]
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@ -881,7 +881,7 @@ Color control
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>>> tup = (0.2, 0.8, 0.55)
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>>> turtle.pencolor(tup)
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>>> turtle.pencolor()
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(0.20000000000000001, 0.80000000000000004, 0.5490196078431373)
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(0.2, 0.8, 0.5490196078431373)
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>>> colormode(255)
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>>> turtle.pencolor()
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(51, 204, 140)
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@ -52,10 +52,10 @@ Some examples::
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'Hello, world.'
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>>> repr(s)
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"'Hello, world.'"
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>>> str(0.1)
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'0.1'
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>>> repr(0.1)
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'0.10000000000000001'
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>>> str(1.0/7.0)
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'0.142857142857'
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>>> repr(1.0/7.0)
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'0.14285714285714285'
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>>> x = 10 * 3.25
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>>> y = 200 * 200
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>>> s = 'The value of x is ' + repr(x) + ', and y is ' + repr(y) + '...'
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@ -56,7 +56,7 @@ operators ``+``, ``-``, ``*`` and ``/`` work just like in most other languages
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>>> (50-5*6)/4
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5.0
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>>> 8/5 # Fractions aren't lost when dividing integers
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1.6000000000000001
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1.6
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Note: You might not see exactly the same result; floating point results can
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differ from one machine to another. We will say more later about controlling
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@ -359,10 +359,10 @@ results in decimal floating point and binary floating point. The difference
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becomes significant if the results are rounded to the nearest cent::
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>>> from decimal import *
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>>> Decimal('0.70') * Decimal('1.05')
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Decimal("0.7350")
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>>> .70 * 1.05
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0.73499999999999999
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>>> round(Decimal('0.70') * Decimal('1.05'), 2)
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Decimal('0.74')
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>>> round(.70 * 1.05, 2)
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0.73
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The :class:`Decimal` result keeps a trailing zero, automatically inferring four
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place significance from multiplicands with two place significance. Decimal
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