Re: the need for 64 bits

2009-12-30 Thread Aahz
In article , Cameron Simpson wrote: >On 29Dec2009 21:42, Aahz wrote: >| In article ><8950e4a5-f630-4ffb-b7ed-5c539913a...@a6g2000yqm.googlegroups.com>, >| Mensanator wrote: >| >Ah, the 8 GB Mac wouldn't have helped. Glad I didn't spend the extra >| >$1000. >| >| It's almost always cheaper to

Re: the need for 64 bits

2009-12-29 Thread Cameron Simpson
On 29Dec2009 21:42, Aahz wrote: | In article <8950e4a5-f630-4ffb-b7ed-5c539913a...@a6g2000yqm.googlegroups.com>, | Mensanator wrote: | >Ah, the 8 GB Mac wouldn't have helped. Glad I didn't spend the extra | >$1000. | | It's almost always cheaper to buy your Mac and then upgrade the RAM | separa

Re: the need for 64 bits

2009-12-29 Thread Aahz
In article <8950e4a5-f630-4ffb-b7ed-5c539913a...@a6g2000yqm.googlegroups.com>, Mensanator wrote: > >Ah, the 8 GB Mac wouldn't have helped. Glad I didn't spend the extra >$1000. It's almost always cheaper to buy your Mac and then upgrade the RAM separately. -- Aahz (a...@pythoncraft.com)

Re: the need for 64 bits

2009-12-29 Thread Roy Smith
In article <034921cf$0$1277$c3e8...@news.astraweb.com>, Steven D'Aprano wrote: > On Sun, 27 Dec 2009 22:50:11 -0800, Mensanator wrote: > > > I routinely use large numbers in my Collatz Conjecture work. > > > > Really large. As in a quarter million bits. > > That's not large. *THIS* is a larg

Re: the need for 64 bits

2009-12-29 Thread Mensanator
On Dec 28, 9:04 pm, Roy Smith wrote: > In article <034921cf$0$1277$c3e8...@news.astraweb.com>, >  Steven D'Aprano wrote: > > > On Sun, 27 Dec 2009 22:50:11 -0800, Mensanator wrote: > > > > I routinely use large numbers in my Collatz Conjecture work. > > > > Really large. As in a quarter million b

Re: the need for 64 bits

2009-12-29 Thread Mensanator
On Dec 28, 6:48 pm, Steven D'Aprano wrote: > On Mon, 28 Dec 2009 16:27:58 -0800, Mensanator wrote: > > And if I were ice fishing on the retention pond near my house and > > someone came up and said "You know, blue whales can achieve a length of > > up to 108 ft.", he would leave in a basket. > > C

Re: the need for 64 bits

2009-12-29 Thread Mensanator
On Dec 28, 4:44 pm, Steven D'Aprano wrote: > On Sun, 27 Dec 2009 22:50:11 -0800, Mensanator wrote: > > I routinely use large numbers in my Collatz Conjecture work. > > > Really large. As in a quarter million bits. > > That's not large. Perhaps not in the absolute sense. But it's large compared to

Re: the need for 64 bits

2009-12-29 Thread Steven D'Aprano
On Sun, 27 Dec 2009 22:50:11 -0800, Mensanator wrote: > I routinely use large numbers in my Collatz Conjecture work. > > Really large. As in a quarter million bits. That's not large. *THIS* is a large number: http://en.wikipedia.org/wiki/Graham's_number Unless you need special notation merely

Re: the need for 64 bits

2009-12-29 Thread Steven D'Aprano
On Mon, 28 Dec 2009 16:27:58 -0800, Mensanator wrote: > And if I were ice fishing on the retention pond near my house and > someone came up and said "You know, blue whales can achieve a length of > up to 108 ft.", he would leave in a basket. Come and see the violence inherent in the system! Help,

Re: the need for 64 bits

2009-12-28 Thread Mensanator
On Dec 28, 9:08 am, casevh wrote: > On Dec 28, 2:13 am, Mark Dickinson wrote: > > > > > > > On Dec 28, 6:50 am, Mensanator wrote: > > > > But with a 64-bit processor, that limitation no longer stops me. > > > > i: 11   bits: 10,460,353,205   decimals:  3,148,880,080 > > > i: 12   bits: 94,143,17

Re: the need for 64 bits

2009-12-28 Thread casevh
On Dec 28, 2:13 am, Mark Dickinson wrote: > On Dec 28, 6:50 am, Mensanator wrote: > > > > > But with a 64-bit processor, that limitation no longer stops me. > > > i: 11   bits: 10,460,353,205   decimals:  3,148,880,080 > > i: 12   bits: 94,143,178,829   decimals: 28,339,920,715 > > > Wow! 94 bill

Re: the need for 64 bits

2009-12-28 Thread Mark Dickinson
On Dec 28, 6:50 am, Mensanator wrote: > But with a 64-bit processor, that limitation no longer stops me. > > i: 11   bits: 10,460,353,205   decimals:  3,148,880,080 > i: 12   bits: 94,143,178,829   decimals: 28,339,920,715 > > Wow! 94 billion bits! 28 billion decimal digits! > > Of course, once o

the need for 64 bits

2009-12-27 Thread Mensanator
I routinely use large numbers in my Collatz Conjecture work. Really large. As in a quarter million bits. You wouldn't think that the processor would make all that much difference. But using the number is a doddle. The real trick is getting there. There is a limitation that few encounter. In an ex