why 3.78-3=0.78 but 3000.78-3000 !=0.78?????

I got it! Thanks, David and Kglad. :-)

"kglad" <webforumsuser@macromedia.com> wrote in message
news:edaikj$b3g$1@forums.macromedia.com...
> binary computers do not use decimal representation of
> numbers. so, you will see rounding errors if you look closely
> enough.

To add to what kglad said, this holds true across the board on binary
computers. In other words, this is not a bug in Flash: it's a fact of life
in dealing with the sorts of computers we all use. You'll see the same
rounding errors in JavaScript, Java, C#, Perl, PHP, etc., etc., etc., -- to
a greater or lesser extent, depending on the degree of accuracy to which
numbers are stored in that language.


David Stiller
Adobe Community Expert
Dev blog, http://www.quip.net/blog/
"Luck is the residue of good design."

binary computers do not use decimal representation of numbers. so, you will see rounding errors if you look closely enough.