Dominique, My real concern is: do accountant just don't like that eventually OpenERP will round differently than their accounting software based on BCD (given that mathematically it's just as correct, it's just different base 10 vs base 2). Which would be boring but acceptable to me.
Or, is that plain illegal in accounting which is then an other story? Then please any law link? This is boring because lots of rounding errors have always been pointed has being a consequence of Float while none of them were so far (not even that last one found at Publicus), so me or Fabien only defended that Float has the required precision or could be dealt with, not about the fact that Decimal favor the exact representation of base 10 decimals and might be required by accountants which looks more like a convention issue (although possibly a critical one, that's what I want to know). I would really like accountants to confirm if that's illegal or just annoying. And I would like to see Fabien's position on this. I regret that people trying to convince me until them only used the easiness of computation, strict equalities or precision arguments to convince me while all those can easily be dealt with with Floats (the perf tradeoff even looks positive to me), while indeed, I agree with you, if there might be one big problem it would be this one: floating point make simple operations not to round like manual base 10 accounting, is that legal? is that just annoying? Lot's of posts seem to point that floating point issue indeed http://stackoverflow.com/questions/61872/use-float-or-decimal-for-accounting-application-dollar-amount but so far I can't see any legal reference regarding this. Again, any law link? I can read things like if 3rd decimal reaches 5 should be rounded up, else down. However, nowhere I can see if a 10^⁻17 epsilon is tolerated in the computation before we do that rounding (it's hard for me to believe it's not tolerable as it would make simple daily accounting pretty challenging and that's why I ask for legal texts or specialists interventions upon this). Raphaël Valyi Founder and ERP Consultant +55 21 3010 9965 http://www.akretion.com <http://www.akretion.com.br/> On Wed, Aug 18, 2010 at 8:13 PM, bounaberdi <[email protected]>wrote: > > Hi Raphaël > > I don't understand why evidence needs so much discussion. > ""For me, with the eye of a physician" > I understand this, but we talk about accounting. 1/3 is just not a number > you can see in accounting. > On the other hand there is no reason to argue and spend more time on this, > since Fabien already gave the conclusion, V6 will behave as V3, V4 and V5. > > Now I just hope the stake about float/BCD is a little bit clearer for > everybody, and consultants will provide clever advice to users. > Thank you for your comments on my exemples. > > > -- > View this message in context: > http://openerp-expert-framework.71550.n3.nabble.com/float-errors-propagating-to-10-2-in-OpenERP-v5-tp1175425p1216860.html > Sent from the openerp-expert-framework mailing list archive at Nabble.com. > > _______________________________________________ > Mailing list: https://launchpad.net/~openerp-expert-framework > Post to : [email protected] > Unsubscribe : https://launchpad.net/~openerp-expert-framework > More help : https://help.launchpad.net/ListHelp >
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