> On Aug 11, 2015, at 8:29 AM, Geert Janssens <geert.gnuc...@kobaltwit.be> > wrote: > > On Monday 10 August 2015 16:27:40 John Ralls wrote: >>> On Aug 10, 2015, at 10:34 AM, Geert Janssens >>> I seem to remember that banks here use 6 significant digits in >>> exchange rates, which is not quite the same as 6 places after the >>> decimal point. Your USD-Sao Tomean Dobra illustrates this: due to >>> the extreme value difference between the two you need 10 digits >>> after the decimal point, but only 6 of them are significant (ie not >>> a leading zero). >>> >>> Is this something our gnc_numeric code supports and can be used by >>> the price db ? >> >> We have “significant digits” rounding code, but IIRC it’s really six >> decimal places. If we were to have real significant digits we’d need >> to be careful to keep it away from the debits-and-credits code or it >> could make a real mess. >> > > I'm probably slow here. What mess would that create ?
Rounding errors leading to imbalances. Suppose the amount I paid for a car in June got rounded to six significant digits: The pennies would get rounded off (12,345.67). Regards, John Ralls _______________________________________________ gnucash-devel mailing list gnucash-devel@gnucash.org https://lists.gnucash.org/mailman/listinfo/gnucash-devel
