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GAP 4.8.7

For an overview of changes in GAP 4.8.7 see file.

Linux and macOS

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.

gap4r8p7_2017_03_24-21_21.tar.gz 308 MB md5: 06fab34c3368b80c7bece34db429a00d
gap4r8p7_2017_03_24-21_21.tar.bz2 256 MB md5: 571323cba36d3f483623eeb44c4c6d9f 330 MB md5: 17a0174b354733be2efa5eb5ae9c5e96

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:\gap4r8 (default), D:\gap4r8p3 or C:\Math\GAP\gap4r8, but you must not install it in a directory named like C:\Program files\gap4r8 or C:\Users\alice\My Documents\gap4r8 etc.

gap4r8p7_2017_03_24-21_21.exe 442 MB md5: a864341b786496335359b38f5c3344d0

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. 464 MB md5: 384e8acc54055d212e42026def2b0bae 464 MB md5: 7992b77346a44fd4813280c9871a1b6c

In addition, there is an experimental 64-bit version of GAP for Windows here: 460 MB md5: 15cfc7cf36d427e8dc6816a1b8c4139f

Packages included in this release

Each of the GAP 4.8.7 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 2015.11.06 06/11/2015 A link to 4ti2
ACE 5.2 11/03/2016 Advanced Coset Enumerator
AClib 1.2 29/05/2012 Almost Crystallographic Groups - A Library and Algorithms
Alnuth 3.0.0 26/10/2011 Algebraic number theory and an interface to PARI/GP
ANUPQ 3.1.4 08/03/2016 ANU p-Quotient
AtlasRep 1.5.1 30/03/2016 A GAP Interface to the Atlas of Group Representations
AutoDoc 2016.12.04 04/12/2016 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 1.8 25/11/2016 Computing the Automorphism Group of a p-Group
Browse 1.8.6 15/08/2014 browsing applications and ncurses interface
CAP 2016.02.19 19/02/2016 Categories, Algorithms, Programming
Carat 2.1.6 23/05/2016 Interface to CARAT, a crystallographic groups package
Circle 1.5.4 08/01/2016 Adjoint groups of finite rings
cohomolo 1.6.4 20/01/2016 Cohomology groups of finite groups on finite modules
Congruence 1.1.1 28/10/2014 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
Cryst 4.1.12 10/10/2013 Computing with crystallographic groups
CrystCat 1.1.6 29/05/2012 The crystallographic groups catalog
CTblLib 1.2.2 07/03/2013 The GAP Character Table Library
Cubefree 1.16 06/09/2016 Constructing the Groups of a Given Cubefree Order
cvec 2.5.6 08/11/2016 Compact vectors over finite fields
DESIGN 1.6 23/11/2011 The Design Package for GAP
Digraphs 0.7.1 22/03/2017
EDIM 1.3.2 12/06/2013 Elementary Divisors of Integer Matrices
Example 3.5.1 04/02/2017 Example/Template of a GAP Package and Guidelines for Package Authors
ExamplesForHomalg 2015.11.06 06/11/2015 Examples for the GAP Package homalg
FactInt 1.5.4 13/02/2017 Advanced Methods for Factoring Integers
FGA 1.3.1 28/02/2016 Free Group Algorithms
FinInG 1.3.3 16/02/2016 Finite Incidence Geometry
float 0.7.5 18/02/2017 Integration of mpfr, mpfi, mpc, fplll and cxsc in GAP
FORMAT 1.3 05/26/2012 Computing with formations of finite solvable groups.
Forms 1.2.3 26/10/2015 Sesquilinear and Quadratic
FPLSA 1.1 17/11/2003 Finitely Presented Lie Algebras
FR 2.4.1 09/02/2017 Computations with functionally recursive groups
fwtree 1.0 23/04/2009 Computing trees related to some pro-p-groups of finite width
GAPDoc 1.5.1 23/02/2012 A Meta Package for GAP Documentation
Gauss 2015.11.06 06/11/2015 Extended Gauss functionality for GAP
GaussForHomalg 2015.11.06 06/11/2015 Gauss functionality for the homalg project
GBNP 1.0.3 08/03/2016 computing Gröbner bases of noncommutative polynomials
GeneralizedMorphismsForCAP 2015.12.09 09/12/2015 Implementations of generalized morphisms for the CAP project
genss 1.6.4 08/03/2016 Generic Schreier-Sims
gpd 1.46 21/02/2017 Groupoids, graphs of groups, and graphs of groupoids
GradedModules 2015.12.04 04/12/2015 A homalg based package for the Abelian category of finitely presented graded modules over computable graded rings
GradedRingForHomalg 2015.12.04 04/12/2015 Endow Commutative Rings with an Abelian Grading
GRAPE 4.7 08/01/2016 GRaph Algorithms using PErmutation groups
GrpConst 2.5 07/12/2015 Constructing the Groups of a Given Order
Guarana 0.94 27/04/2012 Applications of Lie methods for computations with infinite polycyclic groups
GUAVA 3.13 31/01/2016 a GAP package for computing with error-correcting codes
HAP 1.11.15 21/02/2017 Homological Algebra Programming
HAPcryst 0.1.11 27/10/2013 A HAP extension for crytallographic groups
HAPprime 0.6 09/06/2011 a HAP extension for small prime power groups
hecke 1.4 02/07/2013 Hecke - Specht 2.4 ported to GAP 4
HeLP 3.1 12/01/2017 Hertweck-Luthar-Passi method.
homalg 2015.11.05 05/11/2015 A homological algebra meta-package for computable Abelian categories
HomalgToCAS 2015.12.08 08/12/2015 A window to the outer world
idrel 2.34 20/10/2016 Identities among relations
IntPic 0.2.1 05/06/2015 A package for drawing integers
IO 4.4.6 08/03/2016 Bindings for low level C library I/O routines
IO_ForHomalg 2015.11.06 06/11/2015 IO capabilities for the homalg project
IRREDSOL 1.3.1 20/03/2016 A library of irreducible soluble linear groups over finite fields and of finite primivite soluble groups
ITC 1.4 06/01/2004 Interactive Todd-Coxeter
json 1.1.0 01/11/2016 Reading and Writing JSON
kan 1.27 20/10/2016 including double coset rewriting systems
kbmag 1.5.4 01/02/2017 Knuth-Bendix on Monoids and Automatic Groups
LAGUNA 3.7.0 11/11/2014 Lie AlGebras and UNits of group Algebras
liealgdb 2.1 28/03/2010 A database of Lie algebras
LiePRing 1.8 08/11/2013 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 2015.12.03 03/12/2015 Category of Matrices over a Field for CAP
LocalizeRingForHomalg 2015.11.06 06/11/2015 A Package for Localization of Polynomial Rings
loops 3.3.0 26/10/2016 Computing with quasigroups and loops in GAP
lpres 0.4.1 24/02/2017 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 2015.11.06 06/11/2015 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 2015.12.09 09/12/2015 Category R-pres for CAP
Modules 2016.01.20 20/01/2016 A homalg based package for the Abelian category of finitely presented modules over computable rings
Nilmat 1.2 10/08/2007 Computing with nilpotent matrix groups
NormalizInterface 0.9.8 07/05/2016 GAP wrapper for Normaliz
nq 2.5.3 08/03/2016 Nilpotent Quotients of Finitely Presented Groups
NumericalSgps 1.0.1 05/06/2015 A package for numerical semigroups
OpenMath 11.4.2 28/02/2017 OpenMath functionality in GAP
orb 4.7.6 08/03/2016 Methods to enumerate Orbits
ParGAP 1.4.0 17/11/2013 Parallel GAP
PatternClass 2.1 27/08/2015 A permutation pattern class package
permut 1.03 30/07/2015 A package to deal with permutability in finite groups
Polenta 1.3.7 09/11/2016 Polycyclic presentations for matrix groups
Polycyclic 2.11 07/03/2013 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
profiling 1.3.0 23/02/2017 Line by line profiling and code coverage for GAP
qaos 1.4 15/11/2016 Interfacing the QaoS database from GAP
QPA 1.25 21/10/2016 Quivers and Path Algebras
QuaGroup 1.8 16/08/2013 a package for doing computations with quantum groups
RadiRoot 2.7 09/04/2014 Roots of a Polynomial as Radicals
RCWA 4.5.1 13/03/2017 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 4.6.0 12/02/2017 Set-Theoretic Computations with Residue Classes
RingsForHomalg 2016.01.20 20/01/2016 Dictionaries of external rings
SCO 2015.11.06 06/11/2015 SCO - Simplicial Cohomology of Orbifolds
SCSCP 2.2.2 28/02/2017 Symbolic Computation Software Composability Protocol in GAP
Semigroups 2.8.0 26/05/2016
SglPPow 2.0 11/08/2016 Database of groups of prime-power order for some prime-powers
SgpViz 0.998 31/05/2008 A package for semigroup visualization
simpcomp 2.1.6 01/02/2016 A GAP toolbox for simplicial complexes
singular 12.04.28 28/04/2012 The GAP interface to Singular
SLA 1.2 01/11/2016 a package for doing computations with simple Lie algebras
Smallsemi 0.6.10 13/01/2015 A library of small semigroups
SONATA 2.8 29/07/2015 System of nearrings and their applications
Sophus 1.23 03/02/2006 Computing in nilpotent Lie algebras
SpinSym 1.5 01/02/2013 Brauer tables of spin-symmetric groups
SymbCompCC 1.2 19/11/2011 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 2016.02.17 17/02/2016 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
unipot 1.2 16/11/2004 Computing with elements of unipotent subgroups of Chevalley groups
UnitLib 3.2.0 11/11/2014 Library of normalized unit groups of modular group algebras
Utils 0.46 08/02/2017 Utility functions in GAP
Wedderga 4.7.3 18/09/2015 Wedderburn Decomposition of Group Algebras
XGAP 4.26 06/11/2016 a graphical user interface for GAP
XMod 2.59 21/03/2017 Crossed Modules and Cat1-Groups
XModAlg 1.12 14/11/2015 Crossed Modules and Cat1-Algebras