a print bug?

[Steve Holden]

Summercoolness at gmail.com wrote:
> it seems that the behavior of "print" is that it will round off
> properly for any floating point imperfection, such as shown in the
> first two samples.  The third sample seems to be a bug?  It doesn't
> know how to handle the floating imperfection in this case.
> 
> 
>>>>1.2345
> 
> 1.2344999999999999
> 
> 
>>>>print 1.2345
> 
> 1.2345
> 
> 
>>>>print "%10.3f" % 1.2345    # seems like a bug ----------------------------------
> 
>      1.234
> 
> 
>>>>print "%10.3f" % 1.23450001
> 
>      1.235
> 
> 
>>>>print "%10.3f" % 1.2344
> 
>      1.234
> 
> 
>>>>print "%10.3f" % 1.2346
> 
>      1.235
> 
  >>> print "%25.22f" % 1.2345
  1.2344999999999999000000

You obviously haven't yet passed your floating-point number proficiency 
test yet. Please restrict yourself to integers until you understand the 
difficulties that inaccuracies in floating-point can create ;-)

regards
  Steve
-- 
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