Dodgson's determinant: a qualitative analysis
2011-07
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Dodgson's determinant: a qualitative analysis
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2011-07
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Condensation, developed by Charles Dodgson, is an uncommon method for calculating the determinant of a matrix. It is generally considered to be numerically unstable due to its iterative nature. While we do not attempt to prove whether or not the algorithm is stable, we conduct a qualitative stability analysis. We compare the algorithm's performance to that of row reduction on contrived and random matrices. We test two modified condensation algorithms for 3#2;3 and 4#2;4 matrices, which we include in our comparisons as well. We also briefly investigate the relationship between the condition number of a matrix and the performance of these algorithms when used to calculate its determinant.
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University of Minnesota M.S. thesis. July 2011. Major: Applied and computational mathematics. Advisor: Professor John R. Greene. 1 computer file (PDF); v, 47 pages, appendix A.
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Schmidt, Amy Dannielle. (2011). Dodgson's determinant: a qualitative analysis. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/114221.
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