Re: true limit of mathematica ? Help me !!!

*To*: mathgroup at smc.vnet.net*Subject*: [mg60258] Re: true limit of mathematica ? Help me !!!*From*: Detlef Müller <dmueller at mathematik.uni-kassel.de>*Date*: Fri, 9 Sep 2005 04:06:58 -0400 (EDT)*References*: <dfm7o5$h9q$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

LumisROB wrote: > During this calculation: > > > m= Table[(i-j)+3.*j^-4 +50*I,{I,1,10000},{j,1,10000}]; > Det[m] > So lets see: Your Matrix has Complex Numbers, and has 10000^2 entries: In[10]:= $Version Out[10]= 5.1 for Linux (January 27, 2005) In[5]:= MaxMemoryUsed[] Out[5]= 2218976 In[11]:= ByteCount[3. + I] Out[11]= 64 In[12]:= 10000^2*ByteCount[3. + I] Out[12]= 6400000000 So it takes 6400000000 bytes, wich is 6400000 kilobyte or 6400 M 6.4 G Maybe more, because while calculaten Det[m] more memory would be needed. > > the kernel has jammed and the following message has been visualized > No more memory available. > Mathematica kernel has shut down. > > Is it possible to overcome this obstacle? > > The dimension of the in demand memory is not limited from windows xp > or my hardware-software' configuratiion, in fact such error also > happens in xp 64 Bit with Mathematica 5.2 (64 Bit) Athlon 64 2 GB Ram. First step would be to get more memory ... Greetings, Detlef