52+52 is one hardware instruction and 52x+52x is implemented by software, hence the 2 orders of magnitude difference in time.
----- Original Message ----- From: Oleg Kobchenko <[EMAIL PROTECTED]> Date: Saturday, September 27, 2008 10:04 Subject: Re: [Jgeneral] Limit error To: General forum <[email protected]> > Interesting to compare > > +/100000000#52 NB. about 1 sec > 5.2e9 > > +/100000000#52x NB. about 1 min > 5200000000 > > about the same memory. > > Let's verify precisely: > > 10 ts '+/100000000#52' > 0.834533 5.36872e8 > > 2 ts '+/100000000#52x' > 54.2623 5.36873e8 > > > > > > From: Joey K Tuttle <[EMAIL PROTECTED]> > > > > I thought displaying it would be boring - but maybe not any > more > > boring than $ or +/ ... > > > > At 08:40 -0700 2008/09/27, Roger Hui wrote: > > >The difference is that Joey's expression did not > > >try to generate the display of 1e8#52 but Paul's > > >expression did, and it's in the generation of > > >that display that the limit error was signaled. > > > > > > > > > > > >----- Original Message ----- > > >From: Joey K Tuttle > > >Date: Saturday, September 27, 2008 8:22 > > >Subject: Re: [Jgeneral] Limit error > > >To: General forum > > > > > >> Works OK on my Mac... > > >> > > >> $100000000 # 52 > > >> 100000000 > > >> > > >> version '' > > >> Installer: j602a_mac_powerpc.dmg > > >> Engine: j602/2008-03-03/16:45 > > >> Library: 6.02.023ProductName: Mac > OS X > > >> ProductVersion: 10.5.5 > > >> > > >> > > >> At 15:52 +0100 2008/09/27, Paul Moore wrote: > > >> >In J32 on Windows, 100000000 # 52 gives a limit > error. What > > >> does this > > >> >mean? I can't see anything stating that there is a > limit in > > >> array size > > >> >(other than available memory) in the documentation. > > >> > > > >> >Is it possible for me to create a hundred-million > entry array? (Such > > >> >an array of integers would be 400M in size, I have > 2G so memory > > >> should>not be an issue). ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
