Commit e73048ff authored by Oliver Sander's avatar Oliver Sander

[!839] Fix several bugs in the eigenvector code for 2x2 and 3x3 symmetric matrices.

Merge branch 'fix-eigenvectors-some-more' into 'master'

ref:core/dune-common\> This merge request fixes three bugs in the
eigenvalue/eigenvector code for 2x2 and 3x3 symmetric matrices. Surprisingly,
all three bugs can be triggered by using particular diagonal matrices.

See merge request [!839]

  [!839]: gitlab.dune-project.org/core/dune-common/merge_requests/839
parents 630f5f0f d5ea06c1
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