On behalf of http://lists.gnu.org/archive/html/help-gsl/2007-11/msg00046.html one may try http://www.strw.leidenuniv.nl/~mathar/progs/LagZero.c , which is stable at least up to order 70:
LagZero -H 70 1.3228598727031574e-01 2.5999310620316057e-01 3.9692367564298847e-01 2.2612844383734487e-01 6.6175893081256665e-01 1.7101015293604357e-01 9.2692488970661668e-01 1.1238816501981314e-01 1.1925568563654070e+00 6.4133640985944609e-02 1.4587932269483981e+00 3.1741278188268586e-02 1.7257764756009522e+00 1.3605327567850874e-02 1.9936542226231453e+00 5.0416367534667035e-03 2.2625804097899471e+00 1.6117354139288814e-03 2.5327166122907285e+00 4.4340001998899038e-04 2.8042335229302875e+00 1.0466998173739962e-04 3.0773126524497556e+00 2.1131030668113294e-05 3.3521483007723556e+00 3.6344339797629628e-06 3.6289498686372545e+00 5.3018786512204394e-07 3.9079445988680894e+00 6.5231229900550627e-08 4.1893808634925742e+00 6.7512636627769693e-09 4.4735321501381859e+00 5.8035068367103955e-10 4.7607019531713526e+00 4.1960322961834483e-11 5.0512298489716008e+00 2.3226527644617368e-12 5.3454991415732511e+00 1.1337324365805188e-13 5.6439466223452390e+00 4.8823220258731440e-15 5.9470752244713703e+00 1.0699772209822617e-16 6.2554707188783167e+00 3.0179374416964878e-18 6.5698241787566669e+00 7.8984096655761513e-20 6.8909628903904032e+00 8.1334799725562477e-22 7.2198940023018823e+00 7.0709229525752888e-24 7.5578680649896146e+00 6.5772909721107653e-26 7.9064749419687788e+00 1.9232964004346795e-28 8.2677951152318077e+00 6.9659652066346418e-31 8.6446518655005509e+00 1.4032794077167204e-33 9.0410623133341144e+00 1.2827806369087580e-36 9.4631239608462074e+00 5.5891637121667083e-40 9.9210064725726355e+00 8.6319853950662405e-44 1.0434459776321239e+01 2.8687890534653838e-48 1.1055240743138121e+01 5.9856206004921644e-54 If this is just to be run once, an alternative is to use either PARI or Maple to produce the list of all the zeros, and to generate a big table of these that can be statically added to the application coding. -- Richard J Mathar http://www.strw.leidenuniv.nl/~mathar _______________________________________________ Help-gsl mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-gsl
