Hi Robert, Friday, June 8, 2007, 7:21:39 PM, you wrote: > Precisely defined limits are not the same as precisely defined values. I > might precisely define the amount of entropy on a random value as being > some formula based on the current temperature of my CPU. The formula is > quite precise, but the value is only precisely known after I take the > temperature... and even then it probably doesn't serve me to know it > explicitly unless I'm verifying results. If I then take that random > value and use it to make other decisions then the end result isn't > exactly precise. The end result isn't "precise", but it will always exist between some very real and very price possible values, those controlled by the min and max temp of your CPU. Cheers, Rich -- Zend Certified Engineer http://www.corephp.co.uk "Never trust a computer you can't throw out of a window" -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php