Optional PARI/GP packages
This page lists all optional PARI/GP packages made available by the PARI
group. These packages use up a nonnegligible amount of disk space and will be
useless for most users, hence they are distributed separately and maintained
independently. They are rarely upgraded so most of them will only be
downloaded once. All packages are © the PARI group, distributed under
the terms of the GNU General Public License (GPL version 2 or any later
version).
Installation
A. To use a package with the daily Windows GP binary
Extract the archive in same folder as gp.exe (this will create a
'data' subfolder).
B. To install a package from a source distribution.
Extract the archive
in the toplevel pari directory before running ./Configure . Then
run make install as usual. To test the
distribution before installing, you can follow the following threestep
procedure
make installdata , which will only install the packages
extracted in the toplevel pari directory as above, and nothing else.
make testall will fully test the distribution, including
the newly installed packages.
make install to fully install the new distribution.
Of course, if the needed packages are already installed on this particular
machine, you can omit the first step. If some packages are in fact missing,
the second step will output warnings of the form
Skipping testname: optional package packagename
not installed .
If you need the corresponding feature, you can then install the needed
package.
C. To install a package into an existing PARI/GP installation.
This is in particular the only method available to users of the Windows
selfextracting binary.
 Type
default(datadir) in the gp interpreter to determine the
directory where it expects its architecture independent files.
 Extract the archive anywhere you like, which will create a
'data' folder.
 Open
'data' and move the folder it contains, e.g.
elldata , to the datadir determined above.
 You may delete the now empty
'data' folder.
D. To test whether a package is available.
Here are sample commands that will fail if a given package is not
available:
ellinit("11a1") /* package: elldata */
galoisgetpol(8) /* package: galpol */
galoisgetname(12,1) /* package: galpol 4.0 and up */
ellmodulareqn(11) /* package: seadata */
polgalois(x^82) /* package: galdata */
nflist("A5") /* package: nflistdata */
Available Packages
 elldata.tgz (54.8 MB), Mar 1 2021
sha256sum: dd551e64932d4ab27b3f2b2d1da871c2353672fc1a74705c52e3c0de84bd0cf6
md5sum: 32cd84098418d75f521c840ae5c4bd01
/ PGP signature: elldata.tgz.asc
PARI/GP version of J. E. Cremona
Elliptic
Curve Data, needed by ellsearch and ellidentify .
Require PARI/GP 2.2.11 and up.
 galpol.tgz (9.6 MB), Jun 25 2018
sha256sum: 562af28316ee335ee38c1172c2d5ecccb79f55c368fb9f2c6f40fc0f416bb01b
md5sum: 6ebd6057f1b252f7f9b77525c27f447d
/ PGP signature: galpol.tgz.asc
PARI package of the
GALPOL
database of polynomials defining Galois extensions of the rationals,
accessed by galoisgetpol , galoisgetgroup ,
galoisgetname .
Require PARI/GP 2.4.3 and up
 seadata.tgz (18.3 MB), Jun 18 2009
sha256sum: c9282a525ea3f92c1f9c6c69e37ac5a87b48fb9ccd943cfd7c881a3851195833
md5sum: 6e9c119ccb3c65916a48e1a8cd899558
/ PGP signature: seadata.tgz.asc
Needed by ellap for large primes.
Require PARI/GP 2.4.3 and up.
These polynomials were extracted from the ECHIDNA databases and
computed by David R. Kohel. This covers finite fields of cardinality
q up to 750 bits. PARI/GP 2.9 contains fallback code to go on when
all modular polynomials in the database have been exhausted and can handle
larger fields (with an important slowdown).
Other versions:

seadatasmall.tgz (655 KB), Jun 18 2009
sha256sum: bf5be913472b268df7f1242f94c68113fcacceb30c280507447ff2be62760a8f
md5sum: 705b51f147872895a7307ed4e57f55f2
/ PGP signature: seadatasmall.tgz.asc
The second one is a much smaller version that should be suitable for
fields up to 350 bits.

seadatabig.tar (98.7 MB), Apr 18 2017
sha256sum: 7c4db2624808a5bbd2ba00f8b644a439f0508532efd680a247610fdd5822a5f2
md5sum: c0da412320804de3e31c90179afee9be
/ PGP signature: seadatabig.tar.asc
The third one is huge and contains extra modular polynomials
of level between 500 and 800. This is suitable for fields up to 1100 bits.
 nftables.tgz (8.0 MB), Sep 29 2008
sha256sum: 8dd3393ce6b3cfcf599f094f7b22bdffe17c3ba25deb912513d54676bd7cfe92
md5sum: 82788524f36bbbba886785c940c859db
/ PGP signature: nftables.tgz.asc
Repackaging of the historical
megrez number field tables (errors fixed, 1/10th the size, easier to use).
This package requires no installation: extract it where
desired and look at the [README]. Individual tables from the package are available
separately.
Require PARI/GP 2.2.11 and up (need readvec ).
 galdata.tgz (52 KB), Apr 11 2008
sha256sum: b7c1650099b24a20bdade47a85a928351c586287f0d4c73933313873e63290dd
md5sum: f9f61b2930757a785b568e5d307a7d75
/ PGP signature: galdata.tgz.asc
Needed by polgalois to compute Galois group in degrees 8
through 11.
Require PARI/GP 2.2.7 and up.
 nflistdata.tgz (3.5 MB), Jul 29 2022
sha256sum: 2c19a3e02afd3bba2af3071a7faa80924a75b00bb9713286c886b7fb460944bc
md5sum: efeef2605b4f4a0c105a05f98ebdc776
/ PGP signature: nflistdata.tgz.asc
Needed by nflist to list fields of small discriminant
(currently needed by the single Galois groups A5 and A5(6))
or to list regular extensions of Q(T) in degree 7 to 15.
Require PARI/GP 2.14.0.
