[erlang-questions] Maths Problem -> 2452.45*100. =?utf-8?Q?=3D_?=245244.99999999997
Dave Cottlehuber
dch@REDACTED
Wed Nov 27 02:35:35 CET 2013
On 27. November 2013 at 02:33:05, Sanath Prasanna (ahe.sanath@REDACTED) wrote:
>
> Hi all,
> when running following sample in ERL shell, I got wrong value.
> What is the
> reason for this?
>
> 2452.45*100. = 245244.99999999997
>
> It should be 245245.0 or 245245
Hi Sanath,
Unfortunately not, welcome to Computing :-), the shell is right.
> Then all the calculations became wrong in my program.
> Are there any idea regarding above?
>
> Br,
> Sanath
The best explanation I’ve found is here:
http://floating-point-gui.de/
For an in-depth explanation, read
http://docs.oracle.com/cd/E19957-01/806-3568/ncg_goldberg.html
A+
Dave
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