note swampyankee <P>You've just run into a problem that computer programmers have dealt with for decades: floating point numbers do not form a closed set under the operations of normal arithmetic. The reason is, of course, that floating point numbers only represent a finite subset of rational numbers.</p><!-- Node text goes above. Div tags should contain sig only --> <div class="pmsig"><div class="pmsig-494652"> <hr><p> Information about American English usage [http://wsu.edu/~brians/errors/index.html|here] and [http://andromeda.rutgers.edu/~jlynch/Writing/|here]. Floating point issues? Please read [http://docs.sun.com/source/806-3568/ncg_goldberg.html| this ] before posting. &mdash; emc</p> </div></div> 816567 816567