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MathGroup Archive 2007

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

  • To: mathgroup at smc.vnet.net
  • Subject: [mg80909] RE: [mg80835] What is $MaxNumber on a 64 bit Computer?
  • From: "Ingolf Dahl" <ingolf.dahl at telia.com>
  • Date: Wed, 5 Sep 2007 02:55:05 -0400 (EDT)
  • References: <200709040736.DAA23026@smc.vnet.net>

Strange, on my 32 bit PC:s (running Windows XP and Mathematica 5.2 and 6.0),
$MaxNumber is  
1.9202246726923565854204690606`15.954589770191005*^646456887

I use (single) Intel Pentium 4 processors. Maybe you use AMD processors? So
maybe you have not to invest in a 64-bit processor, just to get a larger
MaxNumber. (I hope I did not kill your best argument for upgrading ;-) )

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.

Best regards

Ingolf Dahl


> -----Original Message-----
> From: Ted Ersek [mailto:ted.ersek at tqci.net] 
> Sent: den 4 september 2007 09:37
> To: mathgroup at smc.vnet.net
> Subject: [mg80835] What is $MaxNumber on a 64 bit Computer?
> 
> 
> On my 32 bit PC $MaxNumber = 1.440397193981*^323228010 I 
> wanted to know if any version has a larger $MaxNumber, and I 
> suppose if any computer does it would be a 64 bit machine.
> 
> Thanks,
> 
>        Ted Ersek
> 
> 
> 




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