Bugs item #473456, was opened at 2001-10-21 11:30 You can respond by visiting: http://sourceforge.net/tracker/?func=detail&atid=105470&aid=473456&group_id=5470 Category: Python Interpreter Core Group: None Status: Open Resolution: None Priority: 5 Submitted By: Frederic Giacometti (giacometti) Assigned to: Nobody/Anonymous (nobody) Summary: float round up on decimal numbers Initial Comment: We used to get this right on python 1.5.2; and this breaks since Python 2.0: >>> for i in range( 10): x = 0.1 * i; print x, str( x), repr( x) ... 0.0 0.0 0.0 0.1 0.1 0.10000000000000001 0.2 0.2 0.20000000000000001 0.3 0.3 0.30000000000000004 0.4 0.4 0.40000000000000002 0.5 0.5 0.5 0.6 0.6 0.60000000000000009 0.7 0.7 0.70000000000000007 0.8 0.8 0.80000000000000004 0.9 0.9 0.90000000000000002 >>> print 0.6 == 0.60000000000000009 0 >>> >>> 0.3 0.29999999999999999 >>> 0.1 0.10000000000000001 >>> 1.0 1.0 >>> 1.01 1.01 >>> 0.8 0.80000000000000004 >>> 0.5 0.5 >>> 1.3 1.3 >>> We get the same problem on Unix and Windows; and python1.5.2 gives the exact decimal values everywhere. ---------------------------------------------------------------------- You can respond by visiting: http://sourceforge.net/tracker/?func=detail&atid=105470&aid=473456&group_id=5470
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