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The previus message was for Tim Devis that asked to upload my matrix to his web site. The problem is that my matrix is 1e+6 x 1...

12343 views

Responded 8 years ago

Can I send you the matrix by a jumbo mail (your mail is that in your profile?)?It makes my some problem to upload the matrix on ...

Ok,I'll send you the matrix

I have to solve Ax=b where A is a large sparse matrix (1e+6 x 1e+5) with about 7e+6 non-zero elements. I tried to solve A'Ax...

Posted 8 years ago

Hi, I'm also working with incomplete gamma function because I need to rewrite the exponential integral as an incomplete gamma fu...

2403 views

Responded 7 years ago

Alessio Rucci" <alessio.rucci@libero.it> wrote in message (http://www.mathworks.com/matlabcentral/newsreader/view_thread/145355#...

1931 views

Is it possible to use METIS also to solve the system Ax=b with large sparse matrix (1e+6 X 1e+5 with 1e+7 non-zero elements). W...

Hi, I'm looking for a function implementing the exponential integral E_n(x) because in Matlab there is only the function for E_1...

1379 views

Posted 7 years ago

Hi, I have a plane in a 3D space (with a specific inclinaton respect to the z-axis) and I'd like to show the contourf of the pla...

817 views

Posted 6 years ago

The initial problem is Ax=b with large sparse matrix (1e+6 x 1e+5) and 7e+6 non-zero elements. I try to solve this system with ...

752 views

Tim Davis" <davis@cise.ufl.edu> wrote in message I aslo tried to permute before doing cholinc but the problem I don't know wh...

I have a large sparce matrix of dimensions 1e+5 X 1e+5, the nonzero elements are nearly 1e+6. This matrix is bad-conditioned, wh...