## Group Grund

Group Description |
Matrices from Friedrich Grund, WIAS Berlin. Chemical process simulation. -------------------------------------------------------------------------------- To: davis :at the domain: cise.ufl.edu Subject: Matrices to your subdirectory Date: Tue, 07 Oct 97 10:53:02 +0200 From: "F. Grund, WIAS Berlin" <grund :at the domain: wias-berlin.de> I put the files bayer.tar.gz chem.tar.gz poli.tar.gz in your subdirectory pub/faculty/davis/incoming The matrices in bayer.tar.gz are of the german chemical industry (chemical process simulation). In chem.tar.gz you find matrices of demonstration examples of the chemical process simulator SPEEDUP. The two matrices in poli.tar.gz are of account of capital links. The problem is: Determine the inverse matrix of I-A. I is the unity matrix and A a matrix with elements a(i,j) and 0 <= a(i,j) < 1 The elements b(i,j) of B = (I-A)**(-1) are >= 0. These matrices are very sparse and the fill in is very small. Best Regards, Friedrich Grund |
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Displaying collection matrices

**21 - 22**of**22**in totalId | Name | Group | Rows | Cols | Nonzeros | Kind | Date | Download File |
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455 | bayer04 | Grund | 20,545 | 20,545 | 85,537 | Chemical Process Simulation Problem | 1997 | MATLAB Rutherford Boeing Matrix Market |

452 | bayer01 | Grund | 57,735 | 57,735 | 275,094 | Chemical Process Simulation Problem | 1997 | MATLAB Rutherford Boeing Matrix Market |