Hello ishaybas, welcome to the monastery! :)

Standard rounding error phenomenon, you will find this in most languages with binary floats.

More math?

1/10 = 1/(2*5) and you can't represent the prime fraction 1/5 in a binary system without loss.

OTOH 1/2 is no problem, hence any fraction of form m/2**n with m,n in N . All others will have a rounding error.

I'll update links to older discussions...

edit

...like:

There are far are more older threads, sure our brethren will add them soon. :)

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery

update

s/n/m/

In reply to Re: what did I just see..? by LanX
in thread what did I just see..? by ishaybas

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