Program in Fortran 90 based on the multiprecision package MPFUN, by D. Bailey.
Machine used: IBM Risc 6000.
Time for isolating all the roots: for , 0.88 seconds;
for
, 1.22 seconds; for
, 4.6 seconds.
Time for Newton-isolating all the roots of modulus greater than 1:
for , 0.3 seconds;
for
, 0.3 seconds; for
, 0.45 seconds.
Dario Andrea Bini, Dipartimento di Matematica, via Buonarroti 2, 56127 Pisa, ITALY bini@dm.unipi.it October 15, 1996