>>>>> "RR" == Ryan Richter <[EMAIL PROTECTED]> writes:
RR> On Thu, Jun 26, 2008 at 09:55:09AM -0700, Larry Wall wrote: >> We could go as far as to guarantee that Nums do rational arithmetic >> out to a certain point, but probably what the financial insitutions >> want is special fixed-point types that assume a divisor anyway. >> Would any financial institution care to comment? RR> IANAFI, but I think that's more or less right. I think they actually RR> tend to use BCD. RR> http://www2.hursley.ibm.com/decimal/decifaq1.html#inexact but a rat with a divisor of 100 (or 1000 even) should be fine for their needs. bcd is a pain (i write one in the distant past for PL/I). i once even offered to redo it (and i partially started it) for parrot. so if anyone really wants a fast bcd math lib which can handle arbitrary size and precision, and wants to take it over, let me know. i already have add/subtract working and the designs for * and / are there. just needs more coding in c. i don't have the time, focus and incentive to work on it. a fun and smallish project for anyone with the right interest. thanx, uri -- Uri Guttman ------ [EMAIL PROTECTED] -------- 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 ---------
