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GAP 4.11.1

For an overview of changes in GAP 4.11.1 see file.

Linux and macOS

Download one of the gap-4.11.1.* 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-4.11.1.tar.gz 487 MB sha256: 6635c5da7d82755f8339486b9cac33766f58712f297e8234fba40818902ea304 523 MB sha256: 310c3bf9c33c751ad8766e331662282ea580fa7c6f628fd549b5b3e3a72c8331

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.


For users of Windows 10, we strongly recommend using GAP via the Windows Subsystem for Linux.

Otherwise, we recommend the use of the following .exe installer, which contains 64-bit 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 GAP in C:\gap-4.11.1 (default), D:\gap-4.11.1 or C:\Math\GAP\gap-4.11.1, but you must not install it in a directory named like C:\Program files\gap-4.11.1 or C:\Users\alice\My Documents\gap-4.11.1 etc.

gap-4.11.1.exe 637 MB sha256: cf5df64588514426dd0c9a46c058b9e4f7bf7c9be7f6ccd566a3029a7e4c2b03

Packages included in this release

Each of the GAP 4.11.1 archives contains the core GAP system (the source code, data libraries, regression tests and documentation), and the following selection of packages:

Package name Version Release date Description
4ti2Interface 2020.10-02 16/10/2020 A link to 4ti2
ACE 5.3 12/02/2020 Advanced Coset Enumerator
AClib 1.3.2 28/01/2020 Almost Crystallographic Groups - A Library and Algorithms
AGT 0.2 02/03/2020 Algebraic Graph Theory
Alnuth 3.1.2 28/01/2020 Algebraic number theory and an interface to PARI/GP
ANUPQ 3.2.1 18/04/2019 ANU p-Quotient
AtlasRep 2.1.0 10/05/2019 A GAP Interface to the Atlas of Group Representations
AutoDoc 2020.08.11 11/08/2020 Generate documentation from GAP source code
Automata 1.14 26/09/2018 A package on automata
AutomGrp 1.3.2 30/09/2019 Automata groups
AutPGrp 1.10.2 28/01/2020 Computing the Automorphism Group of a p-Group
Browse 1.8.11 28/08/2020 browsing applications and ncurses interface
CAP 2020.10-01 19/10/2020 Categories, Algorithms, Programming
CaratInterface 2.3.3 20/12/2019 Interface to CARAT, a crystallographic groups package
CddInterface 2020.06.24 24/06/2020 Gap interface to Cdd package
Circle 1.6.3 01/11/2019 Adjoint groups of finite rings
cohomolo 1.6.8 07/07/2019 Cohomology groups of finite groups on finite modules
Congruence 1.2.3 19/05/2019 Congruence subgroups of SL(2,Integers)
CoReLG 1.54 17/01/2020 Computing with real Lie algebras
CRIME 1.5 11/10/2018 A GAP Package to Calculate Group Cohomology and Massey Products
CRISP 1.4.5 07/11/2019 Computing with Radicals, Injectors, Schunck classes and Projectors
crypting 0.10 28/10/2019 Hashes and Crypto in GAP
Cryst 4.1.23 10/12/2019 Computing with crystallographic groups
CrystCat 1.1.9 28/05/2019 The crystallographic groups catalog
CTblLib 1.3.1 08/04/2020 The GAP Character Table Library
Cubefree 1.18 30/09/2019 Constructing the Groups of a Given Cubefree Order
curlInterface 2.2.1 03/04/2020 Simple Web Access
cvec 2.7.4 17/07/2019 Compact vectors over finite fields
datastructures 0.2.5 11/11/2019 Collection of standard data structures for GAP
DeepThought 1.0.2 13/09/2018 This package provides functions for computations in finitely generated nilpotent groups based on the Deep Thought algorithm.
DESIGN 1.7 18/03/2019 The Design Package for GAP
DifSets 2.3.1 14/09/2019 an algorithm for enumerating all difference sets in a group
Digraphs 1.3.1 27/11/2020 Graphs, digraphs, and multidigraphs in GAP
EDIM 1.3.5 13/08/2019 Elementary Divisors of Integer Matrices
Example 4.2.1 09/12/2019 Example/Template of a GAP Package
ExamplesForHomalg 2020.10-02 16/10/2020 Examples for the GAP Package homalg
FactInt 1.6.3 15/11/2019 Advanced Methods for Factoring Integers
ferret 1.0.3 27/05/2020 Backtrack Search in Permutation Groups
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 1.4.3 28/01/2020 Computing with formations of finite solvable groups.
Forms 1.2.5 27/09/2018 Sesquilinear and Quadratic
FPLSA 1.2.4 07/07/2019 Finitely Presented Lie Algebras
FR 2.4.6 03/11/2018 Computations with functionally recursive groups
Francy 1.2.4 17/05/2019 Framework for Interactive Discrete Mathematics
fwtree 1.3 28/01/2020 Computing trees related to some pro-p-groups of finite width
GAPDoc 1.6.4 11/08/2020 A Meta Package for GAP Documentation
Gauss 2020.10-02 16/10/2020 Extended Gauss functionality for GAP
GaussForHomalg 2020.10-02 16/10/2020 Gauss functionality for the homalg project
GBNP 1.0.3 08/03/2016 computing Gröbner bases of noncommutative polynomials
GeneralizedMorphismsForCAP 2020.10-01 19/10/2020 Implementations of generalized morphisms for the CAP project
genss 1.6.6 18/07/2018 Generic Schreier-Sims
GradedModules 2020.10-02 16/10/2020 A homalg based package for the Abelian category of finitely presented graded modules over computable graded rings
GradedRingForHomalg 2020.10-02 16/10/2020 Endow Commutative Rings with an Abelian Grading
GRAPE 4.8.3 09/12/2019 GRaph Algorithms using PErmutation groups
groupoids 1.68 04/09/2019 Calculations with finite groupoids and their homomorphisms
GrpConst 2.6.2 28/01/2020 Constructing the Groups of a Given Order
Guarana 0.96.2 15/11/2018 Applications of Lie methods for computations with infinite polycyclic groups
GUAVA 3.15 13/04/2019 a GAP package for computing with error-correcting codes
HAP 1.29 07/01/2021 Homological Algebra Programming
HAPcryst 0.1.13 10/02/2020 A HAP extension for crystallographic groups
hecke 1.5.3 01/09/2019 Calculating decomposition matrices of Hecke algebras
HeLP 3.5 20/12/2019 Hertweck-Luthar-Passi method.
homalg 2020.10-02 16/10/2020 A homological algebra meta-package for computable Abelian categories
HomalgToCAS 2020.10-02 16/10/2020 A window to the outer world
idrel 2.43 29/05/2019 Identities among relations
images 1.3.0 21/03/2019 Minimal and Canonical images
IntPic 0.2.4 23/08/2019 A package for drawing integers
IO 4.7.0 17/07/2019 Bindings for low level C library I/O routines
IO_ForHomalg 2020.10-02 16/10/2020 IO capabilities for the homalg project
IRREDSOL 1.4.1 10/03/2020 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 2.0.2 03/04/2020 Reading and Writing JSON
JupyterKernel 1.3 23/02/2019 Jupyter kernel written in GAP
JupyterViz 1.5.1 28/03/2019 Visualization Tools for Jupyter and the GAP REPL
kan 1.32 16/07/2020 including double coset rewriting systems
kbmag 1.5.9 07/07/2019 Knuth-Bendix on Monoids and Automatic Groups
LAGUNA 3.9.3 19/05/2019 Lie AlGebras and UNits of group Algebras
LieAlgDB 2.2.1 07/10/2019 A database of Lie algebras
LiePRing 1.9.2 11/10/2018 Database and algorithms for Lie p-rings
LieRing 2.4.1 23/02/2019 Computing with finitely presented Lie rings
LinearAlgebraForCAP 2020.10-01 19/10/2020 Category of Matrices over a Field for CAP
LocalizeRingForHomalg 2020.10-02 16/10/2020 A Package for Localization of Polynomial Rings
loops 3.4.1 06/11/2018 Computing with quasigroups and loops in GAP
lpres 1.0.1 14/11/2018 Nilpotent Quotients of L-Presented Groups
MajoranaAlgebras 1.4 06/12/2018 A package for constructing Majorana algebras and representations
MapClass 1.4.4 02/12/2018 A Package For Mapping Class Orbit Computation
matgrp 0.64 25/08/2020 Matric Group Interface Routines
MatricesForHomalg 2020.10-04 24/10/2020 Matrices for the homalg project
ModIsom 2.5.1 28/01/2020 Computing automorphisms and checking isomorphisms for modular group algebras of finite p-groups
ModulePresentationsForCAP 2020.10-01 19/10/2020 Category R-pres for CAP
Modules 2020.10-02 16/10/2020 A homalg based package for the Abelian category of finitely presented modules over computable rings
MonoidalCategories 2020.10-01 19/10/2020 Monoidal and monoidal (co)closed categories
NConvex 2020.11-04 04/11/2020 A Gap package to perform polyhedral computations
Nilmat 1.4 09/02/2020 Computing with nilpotent matrix groups
NoCK 1.4 22/10/2019 NoCK-Package for computing obstruction for compact Clifford-Klein forms.
NormalizInterface 1.1.0 23/08/2019 GAP wrapper for Normaliz
nq 2.5.4 15/02/2019 Nilpotent Quotients of Finitely Presented Groups
NumericalSgps 1.2.2 03/03/2020 A package for numerical semigroups
OpenMath 11.5.0 09/02/2020 OpenMath functionality in GAP
orb 4.8.3 03/09/2019 Methods to enumerate orbits
PackageManager 1.1 14/10/2020 Easily download and install GAP packages
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 1.3.9 01/10/2019 Polycyclic presentations for matrix groups
Polycyclic 2.16 25/07/2020 Computation with polycyclic groups
polymaking 0.8.2 23/02/2019 Interfacing the geometry software polymake
PrimGrp 3.4.1 05/05/2020 GAP Primitive Permutation Groups Library
profiling 2.3 03/04/2020 Line by line profiling and code coverage for GAP
QPA 1.31 09/09/2020 Quivers and Path Algebras
QuaGroup 1.8.2 01/10/2019 Computations with quantum groups
RadiRoot 2.8 23/04/2018 Roots of a Polynomial as Radicals
RCWA 4.6.4 24/03/2019 Residue-Class-Wise Affine Groups
RDS 1.7 23/02/2019 A package for searching relative difference sets
recog 1.3.2 15/04/2018 A collection of group recognition methods
RepnDecomp 1.1.0 15/02/2020 Decompose representations of finite groups into irreducibles
Repsn 3.1.0 22/02/2019 Constructing representations of finite groups
ResClasses 4.7.2 24/03/2019 Set-Theoretic Computations with Residue Classes
RingsForHomalg 2020.11-01 27/11/2020 Dictionaries of external rings
SCO 2020.10-02 16/10/2020 SCO - Simplicial Cohomology of Orbifolds
SCSCP 2.3.1 22/01/2020 Symbolic Computation Software Composability Protocol in GAP
Semigroups 3.4.0 28/08/2020 A package for semigroups and monoids
SglPPow 2.1 08/03/2018 Database of groups of prime-power order for some prime-powers
SgpViz 0.999.4 29/10/2018 A package for semigroup visualization
simpcomp 2.1.10 03/06/2019 A GAP toolbox for simplicial complexes
singular 2020.12.18 18/12/2020 A GAP interface to Singular
SLA 1.5.3 15/11/2019 Computing with simple Lie algebras
SmallGrp 1.4.2 18/12/2020 The GAP Small Groups Library
Smallsemi 0.6.12 16/08/2019 A library of small semigroups
SONATA 2.9.1 07/10/2018 System of nearrings and their applications
Sophus 1.24 09/04/2018 Computing in nilpotent Lie algebras
SpinSym 1.5.2 01/10/2019 Brauer tables of spin-symmetric groups
SymbCompCC 1.3.1 27/09/2019 Computing with parametrised presentations for p-groups of fixed coclass
Thelma 1.02 06/02/2019 A package on threshold elements
TomLib 1.2.9 23/10/2019 The GAP Library of Tables of Marks
ToolsForHomalg 2020.10-03 22/10/2020 Special methods and knowledge propagation tools
Toric 1.9.5 07/10/2019 toric varieties and some combinatorial geometry computations
ToricVarieties 2021.01.12 12/01/2021 A package to handle toric varieties
TransGrp 3.0 01/08/2020 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 0.69 29/11/2019 Utility functions in GAP
uuid 0.6 22/09/2018 RFC 4122 UUIDs
walrus 0.999 19/12/2019 A new approach to proving hyperbolicity
Wedderga 4.10.0 15/05/2020 Wedderburn Decomposition of Group Algebras
XGAP 4.30 16/04/2019 a graphical user interface for GAP
XMod 2.82 23/10/2020 Crossed Modules and Cat1-Groups
XModAlg 1.18 17/11/2020 Crossed Modules and Cat1-Algebras
YangBaxter 0.9.0 08/11/2019 Combinatorial Solutions for the Yang-Baxter equation
ZeroMQInterface 0.12 01/11/2019 ZeroMQ bindings for GAP