Subj : Math Problem
To   : netscape.public.mozilla.jseng
From : Thorsten R
Date : Sun Sep 19 2004 01:46 pm

Hello everybody,

the following JS code:

function qwe()
{
   var d = 0.0;
   for (a = 0; a < 100000; a++)
      d += 0.1;
   return d;
}

print(qwe());

returns
10000.000000018848

Instead of 10000

The same code in C++ returns correctly 10000.000000

A few days ago someone posted also a problem with math precision, but it was
answered that this is due to the nature of floating point math. But if this
is the case here too, then why is the C++ code returning the correct result?

Regards
Thorsten

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