I have also seen this problem with multiplication and division. I have been adding float support to iScript (WMLScript library) and noticed this. Adding and subtracting floating numbers is fine. And math with integers are perfect.
All I do is a * b or a / b. I can post some tests later. The result is usually not too far off from being correct (although it does not appear to look like rounding). -Donald "Jim McGowen" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > Found something strange... Looks like Palm OS 5 changes certain numbers > multiplying. For example: > double x = 0.141; > long y = (long)( x * 10000.0 ); > > y becomes 1409. > > Also: > double x = 1410.0; > double test = 0.141; > double y = test * 10000.0; > double z = 0.141 * 10000.0; > > x = = 1410.0 = = > 0100000010010110000010000000000000000000000000000000000000000000 > y = = 1410.0 = = > 0100000010010110000001111111111111111111111111111111111111111111 > z = =1410.0 = = > 0100000010010110000010000000000000000000000000000000000000000000 > > Casting z to a long gives 1409. > Only happens with certain "problem" numbers like this one. Haven't tried it > in any other OS version. Is there a way to fix or get around this? > > - Jim > > > -- For information on using the PalmSource Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
