Fix discriminant error with polynomials with identically vanishing derivatives (issue #4449) - #4472
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tbrazel wants to merge 2 commits into
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Fix discriminant error with polynomials with identically vanishing derivatives (issue #4449)#4472tbrazel wants to merge 2 commits into
tbrazel wants to merge 2 commits into
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Add test for resultant of polynomial with zero derivative.
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Fixes #4449
Given a univariate polynomial whose derivative is identically zero (e.g. over a finite field), its discriminant should return the zero polynomial, rather than an error.