Re: What is $MaxNumber on a 64 bit Computer?

*To*: mathgroup at smc.vnet.net*Subject*: [mg80959] Re: What is $MaxNumber on a 64 bit Computer?*From*: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>*Date*: Thu, 6 Sep 2007 05:30:31 -0400 (EDT)*Organization*: The Open University, Milton Keynes, UK*References*: <200709040736.DAA23026@smc.vnet.net> <fblk52$qjq$1@smc.vnet.net>

Ingolf Dahl wrote: <snip> > By the way, I note that Exp[Log[$MaxNumber]] generates Overflow, but > Exp[Log[$MaxNumber/2]] is OK on my computer. I use that in a program, so I > wonder if there is any other system where the last expression generates > Overflow. FWIW, got overflow for the first expression. Second expression is okay on my PC, 32 bits, architecture x86, Intel Pentium 4 processor with HT (Hyper-Threading) technology and Microsoft Windows XP SP2 (Service Pack 2), Mathematica for Windows versions 6.0.1. In[1]:= $Version Exp[Log[$MaxNumber]] Exp[Log[$MaxNumber/2]] Out[1]= "6.0 for Microsoft Windows (32-bit) (June 19, 2007)" During evaluation of In[1]:= General::ovfl: Overflow occurred in \ computation. >> Out[2]= Overflow[] Out[3]= 9.601123363461783992717910966`15.954589770191003*^646456886 Best regards, -- Jean-Marc

**References**:**What is $MaxNumber on a 64 bit Computer?***From:*"Ted Ersek" <ted.ersek@tqci.net>