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Nonsingularity under data rounding. (English) Zbl 0709.65036
Summary: For a square floating point matrix A we give a test for the existence of a singular real matrix which rounds to A.

65G30 Interval and finite arithmetic
65F30 Other matrix algorithms (MSC2010)
65G50 Roundoff error
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[1] Gantmacher, F.R., Applications of the theory of matrices, (1959), Interscience New York · Zbl 0085.01001
[2] Rohn, J., Systems of linear interval equations, Linear algebra appl., 26, 39-78, (1989) · Zbl 0712.65029
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