I ran the test suite with gcd == spmod, subres and algebraic == false,
true.
gcd algebraic #errors time (sec)
------ ------------- --------- ---------------
spmod false 0 5.933
spmod true 2 6.250
subres false 0 5.900
subres true 2 6.217
Notes:
(1) The two errors reported with algebraic == true are not true bugs; to
show equality, we need to use fullratsimp instead of ratsimp
(or apply ratsimp twice).
(2) The two errors occur for rtest7 #25 and rtest11 #3; these problems are
identical integrate(1/(2 + x^3),x).
(3) I doubt our test suite is a good speed test ---- the 0.3 second extra
for the algebraic == true cases might be due to printing the errors.
Maxima version: 5.9.0.1cvs
Maxima build date: 10:9 4/28/2004
host type: i686-pc-mingw32
lisp-implementation-type: Kyoto Common Lisp
lisp-implementation-version: GCL 2.7.0
Barton