Try running this, and you'll see the problem: <cfset c = 15.12 + 59.70 - 74.82 /> <cfoutput> #c#<br /> #val(c)# </cfoutput>
The reason is that floating point arithmetic is not exact. You end up with a very small error (1.42108547152E-014) that CF expresses as scientific notation. When you run val() on it, it strips the exponent, so you're left with something that's 14 orders of magnitude off of what the real result is. cheers, barneyb On 12/6/05, sdaniels @ marketplacetech. com sdaniels @ marketplacetech. com <[EMAIL PROTECTED]> wrote: > Create an empty .cfm and put this in it: > > <cfdump var="#val(15.12 + 59.70 - 74.82)#"/> > > As far as I can tell, 15.12 + 59.70 = 74.82, and 15.12 + 59.70 - 74.82 = 0. > > However, if I run the code above I get 1.42108547152. I have tried this on > three different servers, one being a 7.0.1, the others 6.1. > -- Barney Boisvert [EMAIL PROTECTED] 360.319.6145 http://www.barneyb.com/ Got Gmail? I have 100 invites. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Logware (www.logware.us): a new and convenient web-based time tracking application. Start tracking and documenting hours spent on a project or with a client with Logware today. Try it for free with a 15 day trial account. http://www.houseoffusion.com/banners/view.cfm?bannerid=67 Message: http://www.houseoffusion.com/lists.cfm/link=i:4:226257 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
