Allow for more iterations in SelfAdjointEigenSolver (bug #354).

Add an assert to guard against using eigenvalues that have not converged.
Add call to info() in tutorial example to cover non-convergence.

1 files changed, 2 insertions, 1 deletions

diff --git a/doc/examples/TutorialLinAlgSelfAdjointEigenSolver.cpp b/doc/examples/TutorialLinAlgSelfAdjointEigenSolver.cpp
index e98444347..8d1d1ed65 100644
--- a/doc/examples/TutorialLinAlgSelfAdjointEigenSolver.cpp
+++ b/doc/examples/TutorialLinAlgSelfAdjointEigenSolver.cpp
@@ -10,8 +10,9 @@ int main()
    A << 1, 2, 2, 3;
    cout << "Here is the matrix A:\n" << A << endl;
    SelfAdjointEigenSolver<Matrix2f> eigensolver(A);
+   if (eigensolver.info() != Success) abort();
    cout << "The eigenvalues of A are:\n" << eigensolver.eigenvalues() << endl;
-   cout << "Here's a matrix whose columns are eigenvectors of A "
+   cout << "Here's a matrix whose columns are eigenvectors of A \n"
         << "corresponding to these eigenvalues:\n"
         << eigensolver.eigenvectors() << endl;
 }