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Hi, 

"Pinpress" <nothing@nothing.edu> wrote in message <ilojlu$esq$1@ginger.mathworks.com>... 
Thanks Steve for the pointer. The reason I am asking about this is that I just realize that when I was trying to solve a linear system of equations using Matlab, it always says that the matrix is almost singular, while if I use my other Fortran code (using SPLIB), it solves the equations fine, within only 10 iterations. I think this is probably in Matlab (and true for any codes written in Matlab, perhaps?), there is the "eps" that controls the roundoff error, which makes it infeasible for these types of solutions. 
On 110315 03:54 PM, Pinpress wrote: 
"Think two, count blue." <roberson@hushmail.com> wrote in message <iloods$4dv$1@nrcnews.nrc.ca>... 


The condition number is on the order of 1e19 in matlab, indeed smaller than eps. 
On 3/16/2011 6:57 AM, Pinpress wrote: 

Thanks all. 
"Pinpress" wrote in message <ilqld5$946$1@ginger.mathworks.com>... 
Hi Bruno, 

"Pinpress" wrote in message <ilqpgb$lbc$1@ginger.mathworks.com>... 
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