dual X
The dual variety to a coincident root locus is the join of certain coincident root loci, as described in the paper by H. Lee and B. Sturmfels - Duality of multiple root loci - J. Algebra 446, 499-526, 2016.
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In the example below, we apply some of the functions that are available for the returned objects.
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The source of this document is in /build/reproducible-path/macaulay2-1.25.05+ds/M2/Macaulay2/packages/CoincidentRootLoci/documentation.m2:181:0.