nag_lapacklin_zptsv (f07jnc) Example Program Results Solution ( 2.0000, 1.0000) ( 1.0000, 1.0000) ( 1.0000, -2.0000) ( 1.0000, -1.0000) Diagonal elements of the diagonal matrix D 16.0000 9.0000 1.0000 4.0000 Subdiagonal elements of the Cholesky factor L ( 1.0000, 1.0000) ( 2.0000, -1.0000) ( 1.0000, -4.0000)