>>>>> "SHC" == Shawn H Corey <shawnhco...@gmail.com> writes:
SHC> Uri Guttman wrote: >> the correct solution for money has always been to use integers >> for the smallest amount (e.g. cents). this will always be correct in all >> languanges. >> SHC> Sorry, but sometimes you have to use real numbers. On the news, SHC> exchange rates are given to a thousand of a cent, which is OK most SHC> most people. But when you exchange 1_000_000 dollars at a time, like SHC> some big banks, an exchange could be out by as much as $10. So you're SHC> back to the two questions: SHC> * What accuracy does the application need? so use integers for 1/1000 of a cent. i said the smallest amount needed. you can go even lower. with 64 bit ints you can go to a millionth of a cent and still have massive amounts (40 bits or so) of dollars. SHC> * Does the program meet this accuracy? not the program but the method of encoding, computing and printing money. uri -- Uri Guttman ------ u...@stemsystems.com -------- http://www.sysarch.com -- ----- Perl Code Review , Architecture, Development, Training, Support ------ --------- Free Perl Training --- http://perlhunter.com/college.html --------- --------- Gourmet Hot Cocoa Mix ---- http://bestfriendscocoa.com --------- -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
