Bad Math

Robert Kern rkern at ucsd.edu
Sat Jul 2 06:03:30 CEST 2005


Patrick Rutkowski wrote:
> I started reading a python book today, one example was:
> 
>>>>4 / (2.0 + 3)
> 
> 0.8

Must be an old book.

> My input/output was:
> 
>>>>4 (2.0 + 3)
> 
> 0.80000000000000004

This is correct.

> Something smells fishy here... whats up?
> 
> --python 2.4.1

http://docs.python.org/tut/node16.html

-- 
Robert Kern
rkern at ucsd.edu

"In the fields of hell where the grass grows high
  Are the graves of dreams allowed to die."
   -- Richard Harter




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