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GAP 4.9.3

This release replaces GAP 4.9.2 (see the overview of changes between GAP 4.9.3 and GAP 4.9.2 here).

Linux and OS X

Download one of the archives below, unpack it and run ./configure; make in the unpacked directory. Then change to the pkg subdirectory and call ../bin/ to run 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-4.9.3.tar.gz 350 MB sha256: e502941e52352285e87faaf11e7f0e810eab8e38849d869fc6b9714d6cf7fe7c
gap-4.9.3.tar.bz2 290 MB sha256: 76f9d036e70415bcd9bed08c830b06dae0f76bc59a1c88da59066d6565da5971 376 MB sha256: 17503cb42ed38ce27f7c247b95e9d8016236110622ace0658ef0914610ce50f2

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-4.9.3 (default), D:\gap-4.9.3 or C:\Math\GAP\gap-4.9.3, but you must not install it in a directory named like C:\Program files\gap-4.9.3 or C:\Users\alice\My Documents\gap-4.9.3 etc.

gap-4.9.3.exe 408 MB sha256: 9c01228603afd9c56d0d786d71f7cc07a0bedffc0ba4c1c4db303ce1884e4cdd

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 techinical 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. 436 MB sha256: ac750761512aa5949551680e003927fe16baa9354986ea17554a8f976af98e81 436 MB sha256: e3eaa7c28fa0eb53db44a1ed8961f0b8c0df618334f6124c87d686448346f941

In addition, there is an experimental 64-bit version of GAP for Windows here: 439 MB sha256: dd08d28b4bb52b45cdbe6432d6578afb30b7bba820d149d7fedb458aba3fdd99

Packages included in this release

Each of the GAP 4.9.3 archives contains the core GAP system (the source code, data libraries, regression tests and documentation), and the following selection of packages:

4ti2Interface 2018.07.06  06/07/2018  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 1.10  30/07/2018  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
curlInterface 2.0.2  30/08/2018  Simple Web Access
cvec 2.6.1  07/06/2018  Compact vectors over finite fields
datastructures 0.2.2  20/08/2018  Collection of standard data structures for GAP
DeepThought 1.0.1  24/08/2018  This package provides functions for computations in finitely generated nilpotent groups based on the Deep Thought algorithm.
DESIGN 1.6  23/11/2011  The Design Package for GAP
Digraphs 0.12.2  24/08/2018  Graphs, digraphs, and multidigraphs in GAP
EDIM 1.3.3  30/01/2018  Elementary Divisors of Integer Matrices
Example 4.1.1  18/07/2018  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 2018.06.01  01/06/2018  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 2.6.1  09/08/2018  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 4.5.2  21/08/2018  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 0.999999  31/07/2018  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 2018.08.24  24/08/2018  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 2018.08.24  24/08/2018  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 2.4.2  24/07/2018  A permutation pattern class package
permut 2.0.3  19/08/2018  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 1.5  25/07/2018  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 2.0.4  31/08/2018  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 0.57  02/06/2018  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 2.69  20/07/2018  Crossed Modules and Cat1-Groups
XModAlg 1.17  30/08/2018  Crossed Modules and Cat1-Algebras
ZeroMQInterface 0.10  02/03/2018  ZeroMQ bindings for GAP