On Tue, Mar 9, 2010 at 11:00, Info <1888software@xxxxxxxxx> wrote: > Hello List, > I am using the math function exp( $arg ) > > http://php.net/exp > > ... using argument values ranging between 0 to 1500. > > When I get into larger numbers, such as 750, the function returns an > undocumented "INF". > Presumably the "INF" means the number exceeds processing capacity. It would > be nice to know the official explanation. > > At any rate, I want to capture the "INF" so that I can indicate to my users, > in a friendlier manner, that capacity is exceeded. > > How? > > Please also cc my address on your reply, with thanks, > > Sincerely, > Esteban > > 1888Software.com S.A. > Software Powers the Net > WWW: http://1888Software.com > Email: 1888Software@xxxxxxxxx > You can use the is_infinite() function. It's not entirely undocumented though. See http://php.net/float. Basically you'll get INF when you exceed the range according to the IEEE floating point standard. -- Daniel Egeberg -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
