Allow user to compute only the eigenvalues and not the eigenvectors.
diff --git a/doc/snippets/ComplexEigenSolver_eigenvalues.cpp b/doc/snippets/ComplexEigenSolver_eigenvalues.cpp
index 1afa8b0..5509bd8 100644
--- a/doc/snippets/ComplexEigenSolver_eigenvalues.cpp
+++ b/doc/snippets/ComplexEigenSolver_eigenvalues.cpp
@@ -1,4 +1,4 @@
 MatrixXcf ones = MatrixXcf::Ones(3,3);
-ComplexEigenSolver<MatrixXcf> ces(ones);
+ComplexEigenSolver<MatrixXcf> ces(ones, /* computeEigenvectors = */ false);
 cout << "The eigenvalues of the 3x3 matrix of ones are:" 
      << endl << ces.eigenvalues() << endl;