From: "Cyber Joy" <[log in to unmask]> Sent: Thursday, 15 March 2012 11:59 AM > Dear Craig T. Dedo, > > Thank you very much! > > Actually what I want to get is 13.So in my program£¬I use ”°int(4.8d0/0.4d0+1.0d-10)”±.It works. On that machine. BTW, have you tried 48/4 + 1 ? Always gived 13. > I have checked the machine epsilob.It is 2.220446...E-16 > > sincerely, > > Cyber Joy