1 extern int v3p_netlib_dseupd_( 2 v3p_netlib_logical *rvec, 3 char *howmny, 4 v3p_netlib_logical *select, 5 v3p_netlib_doublereal *d__, 6 v3p_netlib_doublereal *z__, 7 v3p_netlib_integer *ldz, 8 v3p_netlib_doublereal *sigma, 9 char *bmat, 10 v3p_netlib_integer *n, 11 char *which, 12 v3p_netlib_integer *nev, 13 v3p_netlib_doublereal *tol, 14 v3p_netlib_doublereal *resid, 15 v3p_netlib_integer *ncv, 16 v3p_netlib_doublereal *v, 17 v3p_netlib_integer *ldv, 18 v3p_netlib_integer *iparam, 19 v3p_netlib_integer *ipntr, 20 v3p_netlib_doublereal *workd, 21 v3p_netlib_doublereal *workl, 22 v3p_netlib_integer *lworkl, 23 v3p_netlib_integer *info, 24 v3p_netlib_ftnlen howmny_len, 25 v3p_netlib_ftnlen bmat_len, 26 v3p_netlib_ftnlen which_len 27 ); 28