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GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it

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# Circle, chapter 4
# [ ".//doc/example.xml", 18, 35 ]

gap> x:=[ [ 0, 1, 0, 0, 0, 0, 0 ],
>         [ 0, 0, 0, 1, 0, 0, 0 ],
>         [ 0, 0, 0, 0, 1, 0, 0 ],
>         [ 0, 0, 0, 0, 0, 0, 1 ],
>         [ 0, 0, 0, 0, 0, 1, 0 ],
>         [ 0, 0, 0, 0, 0, 0, 0 ],
>         [ 0, 0, 0, 0, 0, 0, 0 ] ];;
gap> y:=[ [ 0, 0, 1, 0, 0, 0, 0 ],
>         [ 0, 0, 0, 0,-1, 0, 0 ],
>         [ 0, 0, 0, 1, 0, 1, 0 ],
>         [ 0, 0, 0, 0, 0, 1, 0 ],
>         [ 0, 0, 0, 0, 0, 0,-1 ],
>         [ 0, 0, 0, 0, 0, 0, 0 ],
>         [ 0, 0, 0, 0, 0, 0, 0 ] ];;

# [ ".//doc/example.xml", 40, 51 ]

gap> R := Algebra( GF(5), One(GF(5))*[x,y] );
<algebra over GF(5), with 2 generators>
gap> Dimension( R );
6
gap> Size( R );
15625
gap> RadicalOfAlgebra( R ) = R;
true

# [ ".//doc/example.xml", 55, 61 ]

gap> G := AdjointGroup( R );;
gap> Size(G);
15625

# [ ".//doc/example.xml", 67, 76 ]

gap> f := IsomorphismPcGroup( G );;
gap> H := Image( f );
Group([ f1, f2, f3, f4, f5, f6 ])
gap> gens := MinimalGeneratingSet( H );;
gap> Length( gens );
3

# [ ".//doc/example.xml", 85, 95 ]

gap> R := Algebra( GF(3), One(GF(3))*[x,y] );
<algebra over GF(3), with 2 generators>
gap> G := AdjointGroup( R );;
gap> H := Image( IsomorphismPcGroup( G ) );
Group([ f1, f2, f3, f4, f5, f6 ])
gap> Length( MinimalGeneratingSet( H ) );
3

# [ ".//doc/example.xml", 100, 112 ]

gap> R := Algebra( GF(2), One(GF(2))*[x,y] );
<algebra over GF(2), with 2 generators>
gap> G := AdjointGroup( R );;
gap> Size(G);
64
gap> H := Image( IsomorphismPcGroup( G ) );
Group([ f1, f2, f3, f4, f5, f6 ])
gap> Length( MinimalGeneratingSet( H ) );
4