nag_sparseig_feast_poly_symm_solve (f12juc) Example Program Results

 Eigenvalues
 (  -1.0000e+00,   -2.0000e+00) 

 Eigenvectors
          1
 1   1.0000
    -0.0000

 2  -1.0000
     0.0000

 3  -0.5000
     0.0000