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GAP 4.9.2

For an overview of changes in GAP 4.9.2 see file.

Linux and macOS

Download one of the archives below, unpack it and [dist] ./configure; make in the unpacked directory. Then change to the pkg subdirectory and call ../bin/ to [dist] the script which will build most of the packages that require compilation (provided sufficiently many libraries, headers and tools are available). For further details,see here. Expert users can find the description of all installation options in the file.

gap-4.9.2.tar.gz 348 MB sha256: a5bd705506547310e6e8bda879c6a2c1aab4b54ba41d47431329f94deb252878
gap-4.9.2.tar.bz2 288 MB sha256: 4fe863beef8f713610c9cd89de89287f8686448acb8cce26c067142f093dc77d 375 MB sha256: 71162af6bd343623139b17100674026fc53d2f66c9183af9561fc9376de40f6a

You may also consider one of the alternative distributions. Note, however, that these are updated independently and may not yet provide the latest GAP release.


We strongly recommend to use the .exe installer which contains binaries for GAP (compiled with the support of GMP and readline libraries) and for selected GAP packages, and provides the standard installation procedure. Note that the path to the GAP directory should not contain spaces. For example, you may install it in C:\gap-4.9.2 (default), D:\gap-4.9.2 or C:\Math\GAP\gap-4.9.2, but you must not install it in a directory named like C:\Program files\gap-4.9.2 or C:\Users\alice\My Documents\gap-4.9.2 etc.

gap-4.9.2.exe 406 MB sha256: 7e823b7d077aa39393804ae3050cd588653933b19f545838803c38099281cd88

The .exe installer should work for the majority of users. Alternatively (for example, if you don't have administrator's privileges on your Windows computer), you may use the archive and edit .bat files manually following instructions from the file. Furthermore, in case of technical problems with readline support under Windows (e.g. command line editing doesn't work, or GAP crashes at startup), we recommend to try the archive. 433 MB sha256: 046a24a13c7306dc15b3b582e6ccf9a21b470407d13f84b337d3c2ee887faf13 434 MB sha256: c85e765a159c3d996427a43a8d2e23543fff43338641928ed177934d7d9ea8b9

In addition, there is an experimental 64-bit version of GAP for Windows here: 438 MB sha256: bc682abb8d519c210cf65c5571719fa1f465ab91f1142a101079da63e023332e

Packages included in this release

Each of the GAP 4.9.2 archives contains the core GAP system (the source code, data libraries, regression tests and documentation), and the following selection of packages:

4ti2Interface   2017.10.04     04/10/2017    A link to 4ti2
ACE   5.2     11/03/2016    Advanced Coset Enumerator
AClib   1.3     11/03/2018    Almost Crystallographic Groups - A Library and Algorithms
Alnuth   3.1.0     01/12/2017    Algebraic number theory and an interface to PARI/GP
ANUPQ   3.2     29/11/2017    ANU p-Quotient
AtlasRep   1.5.1     30/03/2016    A GAP Interface to the Atlas of Group Representations
AutoDoc   2018.02.14     14/02/2018    Generate documentation from GAP source code
Automata   1.13     19/11/2011    A package on automata
AutomGrp   1.3     28/03/2016    Automata groups
AutPGrp   1.9     07/03/2018    Computing the Automorphism Group of a p-Group
Browse   1.8.8     08/06/2018    browsing applications and ncurses interface
CAP   2017.09.25     25/09/2017    Categories, Algorithms, Programming
Carat   2.2.2     28/03/2018    Interface to CARAT, a crystallographic groups package
Circle   1.6.1     25/09/2017    Adjoint groups of finite rings
cohomolo   1.6.6     02/12/2017    Cohomology groups of finite groups on finite modules
Congruence   1.2.2     06/02/2018    Congruence subgroups of SL(2,Integers)
Convex   2013.12.05     05/12/2013    A package for fan combinatorics
CoReLG   1.20     02/12/2014    computation with real Lie groups
Crime   1.4     01/6/2011    A GAP Package to Calculate Group Cohomology and Massey Products
CRISP   1.4.4     20/03/2016    Computing with Radicals, Injectors, Schunck classes and Projectors
crypting   0.8     25/05/2018    Hashes and Crypto in GAP
Cryst   4.1.17     13/04/2018    Computing with crystallographic groups
CrystCat   1.1.8     09/02/2018    The crystallographic groups catalog
CTblLib   1.2.2     07/03/2013    The GAP Character Table Library
Cubefree   1.17     11/06/2018    Constructing the Groups of a Given Cubefree Order
cvec   2.6.1     07/06/2018    Compact vectors over finite fields
DESIGN   1.6     23/11/2011    The Design Package for GAP
Digraphs   0.12.1     26/04/2018    Graphs, digraphs, and multidigraphs in GAP
EDIM   1.3.3     30/01/2018    Elementary Divisors of Integer Matrices
Example   4.1.0     26/04/2018    Example/Template of a GAP Package
ExamplesForHomalg   2018.05.29     29/05/2018    Examples for the GAP Package homalg
FactInt   1.6.2     18/02/2018    Advanced Methods for Factoring Integers
FGA   1.4.0     23/03/2018    Free Group Algorithms
FinInG   1.4.1     31/03/2018    Finite Incidence Geometry
float   0.9.1     14/06/2018    Integration of mpfr, mpfi, mpc, fplll and cxsc in GAP
FORMAT   1.4a     19/03/2018    Computing with formations of finite solvable groups.
Forms   1.2.4     26/08/2017    Sesquilinear and Quadratic
FPLSA   1.2.2     04/02/2018    Finitely Presented Lie Algebras
FR   2.4.5     21/03/2018    Computations with functionally recursive groups
fwtree   1.1     08/03/2018    Computing trees related to some pro-p-groups of finite width
GAPDoc   1.6.1     28/11/2017    A Meta Package for GAP Documentation
Gauss   2018.04.03     03/04/2018    Extended Gauss functionality for GAP
GaussForHomalg   2018.02.05     05/02/2018    Gauss functionality for the homalg project
GBNP   1.0.3     08/03/2016    computing Gröbner bases of noncommutative polynomials
GeneralizedMorphismsForCAP   2017.09.09     09/09/2017    Implementations of generalized morphisms for the CAP project
genss   1.6.5     21/11/2017    Generic Schreier-Sims
GradedModules   2018.02.04     04/02/2018    A homalg based package for the Abelian category of finitely presented graded modules over computable graded rings
GradedRingForHomalg   2018.02.04     04/02/2018    Endow Commutative Rings with an Abelian Grading
GRAPE   4.8     05/06/2018    GRaph Algorithms using PErmutation groups
groupoids   1.55     02/02/2018    Calculations with finite groupoids and their homomorphisms
GrpConst   2.6     08/03/2018    Constructing the Groups of a Given Order
Guarana   0.94     27/04/2012    Applications of Lie methods for computations with infinite polycyclic groups
GUAVA   3.14     24/03/2018    a GAP package for computing with error-correcting codes
HAP   1.12.6     16/04/2018    Homological Algebra Programming
HAPcryst   0.1.11     27/10/2013    A HAP extension for crytallographic groups
hecke   1.4     02/07/2013    Hecke - Specht 2.4 ported to GAP 4
HeLP   3.3     11/12/2017    Hertweck-Luthar-Passi method.
homalg   2017.10.26     26/10/2017    A homological algebra meta-package for computable Abelian categories
HomalgToCAS   2018.06.15     15/06/2018    A window to the outer world
idrel   2.41     18/03/2018    Identities among relations
IntPic   0.2.3     14/09/2017    A package for drawing integers
IO   4.5.1     10/01/2018    Bindings for low level C library I/O routines
IO_ForHomalg   2017.09.02     02/09/2017    IO capabilities for the homalg project
IRREDSOL   1.4     03/08/2017    A library of irreducible soluble linear groups over finite fields and of finite primivite soluble groups
ITC   1.5     13/06/2018    Interactive Todd-Coxeter
json   2.0.0     08/06/2018    Reading and Writing JSON
JupyterKernel   0.99999     21/06/2018    Jupyter kernel written in GAP
kan   1.28     04/02/2018    including double coset rewriting systems
kbmag   1.5.5     04/02/2018    Knuth-Bendix on Monoids and Automatic Groups
LAGUNA   3.9.0     26/04/2017    Lie AlGebras and UNits of group Algebras
LieAlgDB   2.2     09/04/2018    A database of Lie algebras
LiePRing   1.9     11/03/2018    Database and algorithms for Lie p-rings
LieRing   2.3     01/11/2016    finitely presented Lie rings
linboxing   0.5.2     19/05/2011    access to LinBox linear algebra functions from GAP
LinearAlgebraForCAP   2017.09.09     09/09/2017    Category of Matrices over a Field for CAP
LocalizeRingForHomalg   2018.02.04     04/02/2018    A Package for Localization of Polynomial Rings
loops   3.4.0     27/10/2017    Computing with quasigroups and loops in GAP
lpres   0.4.3     14/06/2018    Nilpotent Quotients of L-Presented Groups
MapClass   1.2     24/04/2012    A Package For Mapping Class Orbit Computation
matgrp   0.4     25/02/2015    Matric Group Interface Routines
MatricesForHomalg   2018.06.02     02/06/2018    Matrices for the homalg project
ModIsom   2.3.3     08/01/2016    Computing automorphisms and checking isomorphisms for modular group algebras of finite p-groups
ModulePresentationsForCAP   2017.09.09     09/09/2017    Category R-pres for CAP
Modules   2018.05.31     31/05/2018    A homalg based package for the Abelian category of finitely presented modules over computable rings
Nilmat   1.3     12/09/2017    Computing with nilpotent matrix groups
NormalizInterface   1.0.2     03/12/2017    GAP wrapper for Normaliz
nq   2.5.3     08/03/2016    Nilpotent Quotients of Finitely Presented Groups
NumericalSgps   1.1.8     06/06/2018    A package for numerical semigroups
OpenMath   11.4.2     28/02/2017    OpenMath functionality in GAP
orb   4.8.0     10/11/2017    Methods to enumerate Orbits
PatternClass   2.4.1     28/09/2017    A permutation pattern class package
permut   2.0.1     18/02/2018    A package to deal with permutability in finite groups
Polenta   1.3.8     29/11/2017    Polycyclic presentations for matrix groups
Polycyclic   2.14     12/05/2018    Computation with polycyclic groups
PolymakeInterface   2015.01.26     26/01/2015    A package to provide algorithms for fans and cones of polymake to other packages
polymaking   0.8.1     16/11/2013    Interfacing the geometry software polymake
PrimGrp   3.3.1     17/02/2018    GAP Primitive Permutation Groups Library
profiling   2.0.1     06/05/2018    Line by line profiling and code coverage for GAP
qaos   1.6     28/03/2018    Interfacing the QaoS database from GAP
QPA   1.27     16/12/2017    Quivers and Path Algebras
QuaGroup   1.8     16/08/2013    a package for doing computations with quantum groups
RadiRoot   2.8     23/04/2018    Roots of a Polynomial as Radicals
RCWA   4.6.2     26/06/2018    Residue-Class-Wise Affine Groups
RDS   1.6     16/02/2012    A package for searching relative difference sets
recog   1.2.5     08/03/2016    A collection of group recognition methods
recogbase   1.2.5     08/03/2016    A framework for group recognition
Repsn   3.0.2     25/08/2011    A GAP4 Package for constructing representations of finite groups
ResClasses   4.7.1     18/12/2017    Set-Theoretic Computations with Residue Classes
RingsForHomalg   2018.04.04     04/04/2018    Dictionaries of external rings
SCO   2017.09.10     10/09/2017    SCO - Simplicial Cohomology of Orbifolds
SCSCP   2.2.3     24/09/2017    Symbolic Computation Software Composability Protocol in GAP
Semigroups   3.0.16     29/05/2018    A package for semigroups and monoids
SglPPow   2.1     08/03/2018    Database of groups of prime-power order for some prime-powers
SgpViz   0.999.1     13/09/2017    A package for semigroup visualization
simpcomp   2.1.8     05/02/2018    A GAP toolbox for simplicial complexes
singular   12.04.28     28/04/2012    The GAP interface to Singular
SLA   1.4     24/04/2018    a package for doing computations with simple Lie algebras
SmallGrp   1.3     09/04/2018    The GAP Small Groups Library
Smallsemi   0.6.11     26/04/2017    A library of small semigroups
SONATA   2.8     29/07/2015    System of nearrings and their applications
Sophus   1.24     09/04/2018    Computing in nilpotent Lie algebras
SpinSym   1.5     01/02/2013    Brauer tables of spin-symmetric groups
SymbCompCC   1.3     20/03/2018    Computing with parametrised presentations for p-groups of fixed coclass
TomLib   1.2.6     07/11/2016    The GAP Library of Tables of Marks
ToolsForHomalg   2018.05.22     22/05/2018    Special methods and knowledge propagation tools
Toric   1.9.4     07/03/2017    toric varieties and some combinatorial geometry computations
ToricVarieties   2012.12.22     22/12/2012    A package to handle toric varieties
TransGrp   2.0.2     13/11/2017    Transitive Groups Library
Unipot   1.4     09/04/2018    Computing with elements of unipotent subgroups of Chevalley groups
UnitLib   4.0.0     01/05/2018    Library of normalized unit groups of modular group algebras
utils   0.54     12/02/2018    Utility functions in GAP
uuid   0.5     22/05/2018    RFC 4122 UUIDs
Wedderga   4.9.3     30/04/2018    Wedderburn Decomposition of Group Algebras
XGAP   4.27     21/03/2018    a graphical user interface for GAP
XMod   2.68     01/05/2018    Crossed Modules and Cat1-Groups
XModAlg   1.16     29/01/2018    Crossed Modules and Cat1-Algebras
ZeroMQInterface   0.10     02/03/2018    ZeroMQ bindings for GAP