| f08jcc | nag_dstevd All eigenvalues and optionally all eigenvectors of real symmetric tridiagonal matrix, using divide and conquer |
| f08jec | nag_dsteqr All eigenvalues and eigenvectors of real symmetric tridiagonal matrix, reduced from real symmetric matrix using implicit QL or QR |
| f08jfc | nag_dsterf All eigenvalues of real symmetric tridiagonal matrix, root-free variant of QL or QR |
| f08jgc | nag_dpteqr All eigenvalues and eigenvectors of real symmetric positive-definite tridiagonal matrix, reduced from real symmetric positive-definite matrix |
| f08jjc | nag_dstebz Selected eigenvalues of real symmetric tridiagonal matrix by bisection |
| f08jkc | nag_dstein Selected eigenvectors of real symmetric tridiagonal matrix by inverse iteration, storing eigenvectors in real array |