|Matrix Generator WILKINSON|
|Source:||J. H. Wilkinson|
|Discipline:||numerical linear algebra|
|Output format:||Matrix Market format|
This is a Java applet which generates generates a matrix with unit diagonal, ones in its last column, and -C in the lower triangle. This yields a rounding error growth factor of (1+C)N-1 for Gauss elimination with partial pivoting. The case C=1 is Wilkinson's example of a matrix whose growth factor is maximal.
This generator was developed by Bruce Miller of NIST based on Nick Higham's Test Matrix Toolbox for MATLAB.
|N||order of the matrix|
|C||negative of lower triangular elements (0 <= C <= 1)|
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Last change in this page: Wed Sep 22 13:34:24 US/Eastern 2004 [Comments: ]