f08jec | All eigenvalues and eigenvectors of real symmetric tridiagonal matrix, reduced from real symmetric matrix using implicit QL or QR |
f08jfc | All eigenvalues of real symmetric tridiagonal matrix, root-free variant of QL or QR |
f08jsc | All eigenvalues and eigenvectors of real symmetric tridiagonal matrix, reduced from complex Hermitian matrix, using implicit QL or QR |