|Matrix Generator DORR|
|Source:||F. W. Dorr|
|Discipline:||numerical linear algebra|
|Output format:||Matrix Market format|
This is a Java applet which generates a diagonally dominant, tridiagonal M-matrix which is ill-conditioned for small values of the parameter THETA>=0. All rows except the first and last have |A(i,i)| = |A(i,i-1)| + |A(i,i+1)|. The first and last rows are strictly diagonally dominant by THETA*(N+1)2, e.g. |A(1,1)| = |A(1,2)| + THETA*(N+1)2.
This generator was developed by Bruce Miller of NIST based on Nick Higham's Test Matrix Toolbox for MATLAB.
|N||order of the matrix.|
|THETA||affects the amount of diagonal dominance.|
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Last change in this page: Wed Sep 22 13:34:20 US/Eastern 2004 [Comments: ]