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Fix ComplexEigenSolver NaN with flush-to-zero arithmetic

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libeigen/eigen!2196

Co-authored-by: Rasmus Munk Larsen <rmlarsen@gmail.com>
This commit is contained in:
Rasmus Munk Larsen
2026-02-23 11:15:31 -08:00
parent 667cabe3aa
commit d537b51ede
4 changed files with 8 additions and 6 deletions
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3
test/eigensolver_complex.cpp
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@@ -132,7 +132,8 @@ void eigensolver(const MatrixType& m) {
ComplexEigenSolver<MatrixType> ei3(a);
VERIFY_IS_EQUAL(ei3.info(), Success);
VERIFY_IS_MUCH_SMALLER_THAN(ei3.eigenvalues().norm(), RealScalar(1));
VERIFY((ei3.eigenvectors().transpose() * ei3.eigenvectors().transpose()).eval().isIdentity());
RealScalar tol = 2 * a.cols() * NumTraits<RealScalar>::epsilon();
VERIFY((ei3.eigenvectors().adjoint() * ei3.eigenvectors()).eval().isIdentity(tol));
}
}