[Pdx-pm] Unexpected math result

Michael R michael at jamhome.us
Wed Dec 21 11:31:58 PST 2011



(Disclaimer:  cross post from perlmonks)


 mikeraz at hive:~> perl -e 'my $x =
(.0425 * 2) + .0025; print $x - (.0425 * 2) - .0025, $/;'

 2.16840434497101e-18
  mikeraz at hive:~>
 

 Silly me would expect something like 0 to be printed.  Why the
2.16840434497101e-18?  (OK, round it off and you have 0, but ....) 

WT_?

-- 
     Michael Rasmussen
  
http://www.jamhome.us/
 Be Appropriate && Follow Your Curiosity
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