The input for bc ? $ time echo 28433 * 2^7830457 + 1 | bc > result real 5m0.550s user 5m0.231s sys 0m0.140s
hth > -----Original Message----- > From: [email protected] [mailto:programming- > [email protected]] On Behalf Of David Vaughan > Sent: woensdag 6 juli 2011 18:04 > To: Programming forum > Subject: Re: [Jprogramming] Large numbers > > Could you post your input please? I gave p after waiting another 30 minutes. > :/ > I am also curious about the 6!:2 function. > I might input something, and it takes maybe 1 second between my pressing > enter and the result being displayed, but if I time it with 6!:2, it tells me > it only > took 0.0005394 seconds (or a similar number). > What's the reason for this indiscrepancy? > ___________________________ > > David Vaughan > > On 6 Jul 2011, at 16:45, Ben Gorte - LR <[email protected]> wrote: > > > FWIW, bc on my old linux laptop computed it in the last 5 minutes. > > 2357207 digits indeed (should I post them?) > > > > Ben > > > >> -----Original Message----- > >> From: [email protected] [mailto:programming- > >> [email protected]] On Behalf Of David Vaughan > >> Sent: woensdag 6 juli 2011 17:33 > >> To: Programming forum > >> Subject: [Jprogramming] Large numbers > >> > >> Hi, what's the largest number J can compute? > >> I'm looking to compute 28433 * 2^7830457 + 1, which has 2357207 digits. I > >> started calculating it, but it's taking a very long time (obviously), an > >> I'm > >> wondering how long it's likely to take, and whether it's even possible. > >> > >> Thanks. > >> ___________________________ > >> > >> David Vaughan > >> ---------------------------------------------------------------------- > >> For information about J forums see > http://www.jsoftware.com/forums.htm > > ---------------------------------------------------------------------- > > For information about J forums see > http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
